3172387 has 8 divisors (see below), whose sum is σ = 3380832. Its totient is φ = 2966400.

The previous prime is 3172363. The next prime is 3172391. The reversal of 3172387 is 7832713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3172387 - 2¹⁹ = 2648099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3172327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2562 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (422604).

Almost surely, 2^3172387 is an apocalyptic number.

3172387 is a deficient number, since it is larger than the sum of its proper divisors (208445).

3172387 is a wasteful number, since it uses less digits than its factorization.

3172387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its digits is 7056, while the sum is 31.

The square root of 3172387 is about 1781.1195917175. The cubic root of 3172387 is about 146.9361717125.

It can be divided in two parts, 317 and 2387, that added together give a square (2704 = 52²).

The spelling of 3172387 in words is "three million, one hundred seventy-two thousand, three hundred eighty-seven".