3944157 has 16 divisors (see below), whose sum is σ = 6134400. Its totient is φ = 2253216.

The previous prime is 3944141. The next prime is 3944173. The reversal of 3944157 is 7514493.

It is an interprime number because it is at equal distance from previous prime (3944141) and next prime (3944173).

It is not a de Polignac number, because 3944157 - 2⁴ = 3944141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (383400).

Almost surely, 2^3944157 is an apocalyptic number.

It is an amenable number.

3944157 is a deficient number, since it is larger than the sum of its proper divisors (2190243).

3944157 is an equidigital number, since it uses as much as digits as its factorization.

3944157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857 (or 3843 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 3944157 is about 1985.9901812446. The cubic root of 3944157 is about 157.9979303259.

The spelling of 3944157 in words is "three million, nine hundred forty-four thousand, one hundred fifty-seven".