4193881 has 4 divisors (see below), whose sum is σ = 4203792. Its totient is φ = 4183972.

The previous prime is 4193869. The next prime is 4193909. The reversal of 4193881 is 1883914.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4193881 - 2⁷ = 4193753 is a prime.

It is a super-2 number, since 2×4193881² = 35177275684322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4193801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4291 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (1050948).

Almost surely, 2^4193881 is an apocalyptic number.

It is an amenable number.

4193881 is a deficient number, since it is larger than the sum of its proper divisors (9911).

4193881 is an equidigital number, since it uses as much as digits as its factorization.

4193881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910.

The product of its digits is 6912, while the sum is 34.

The square root of 4193881 is about 2047.8967259117. The cubic root of 4193881 is about 161.2644727911.

The spelling of 4193881 in words is "four million, one hundred ninety-three thousand, eight hundred eighty-one".