3172904 has 16 divisors (see below), whose sum is σ = 6799200. Its totient is φ = 1359792.

The previous prime is 3172901. The next prime is 3172907. The reversal of 3172904 is 4092713.

It is an interprime number because it is at equal distance from previous prime (3172901) and next prime (3172907).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172901) 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, 28274 + ... + 28385.

It is an arithmetic number, because the mean of its divisors is an integer number (424950).

Almost surely, 2^3172904 is an apocalyptic number.

It is an amenable number.

3172904 is an abundant number, since it is smaller than the sum of its proper divisors (3626296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3172904 is a wasteful number, since it uses less digits than its factorization.

3172904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56672 (or 56668 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3172904 is about 1781.2647192374. The cubic root of 3172904 is about 146.9441532812.

The spelling of 3172904 in words is "three million, one hundred seventy-two thousand, nine hundred four".