4173889 has 4 divisors (see below), whose sum is σ = 4179924. Its totient is φ = 4167856.

The previous prime is 4173887. The next prime is 4173907. The reversal of 4173889 is 9883714.

4173889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9883714 = 2 ⋅4941857.

It can be written as a sum of positive squares in 2 ways, for example, as 2862864 + 1311025 = 1692^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 4173889 - 2¹ = 4173887 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4173887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822 + ... + 3415.

It is an arithmetic number, because the mean of its divisors is an integer number (1044981).

Almost surely, 2^4173889 is an apocalyptic number.

It is an amenable number.

4173889 is a deficient number, since it is larger than the sum of its proper divisors (6035).

4173889 is an equidigital number, since it uses as much as digits as its factorization.

4173889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034.

The product of its digits is 48384, while the sum is 40.

The square root of 4173889 is about 2043.0097895018. The cubic root of 4173889 is about 161.0078182487.

Subtracting from 4173889 its sum of digits (40), we obtain a square (4173849 = 2043²).

It can be divided in two parts, 4 and 173889, that multiplied together give a square (695556 = 834²).

The spelling of 4173889 in words is "four million, one hundred seventy-three thousand, eight hundred eighty-nine".