3172257 has 24 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 1920600.

The previous prime is 3172243. The next prime is 3172271. The reversal of 3172257 is 7522713.

It is an interprime number because it is at equal distance from previous prime (3172243) and next prime (3172271).

It is not a de Polignac number, because 3172257 - 2⁶ = 3172193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 3172257.

It is not an unprimeable number, because it can be changed into a prime (3172207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2782 + ... + 3752.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

Almost surely, 2^3172257 is an apocalyptic number.

It is an amenable number.

3172257 is a deficient number, since it is larger than the sum of its proper divisors (1998783).

3172257 is a wasteful number, since it uses less digits than its factorization.

3172257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 985 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 3172257 is about 1781.0830974438. The cubic root of 3172257 is about 146.9341646052.

The spelling of 3172257 in words is "three million, one hundred seventy-two thousand, two hundred fifty-seven".