4146689 has 4 divisors (see below), whose sum is σ = 4152900. Its totient is φ = 4140480.

The previous prime is 4146679. The next prime is 4146743. The reversal of 4146689 is 9866414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9866414 = 2 ⋅4933207.

It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 4000000 = 383^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 4146689 - 2¹⁶ = 4081153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4146679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (1038225).

Almost surely, 2^4146689 is an apocalyptic number.

It is an amenable number.

4146689 is a deficient number, since it is larger than the sum of its proper divisors (6211).

4146689 is an equidigital number, since it uses as much as digits as its factorization.

4146689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210.

The product of its digits is 41472, while the sum is 38.

The square root of 4146689 is about 2036.3420636033. The cubic root of 4146689 is about 160.6573089787.

It can be divided in two parts, 4 and 146689, that multiplied together give a square (586756 = 766²).

The spelling of 4146689 in words is "four million, one hundred forty-six thousand, six hundred eighty-nine".