917123725 has 12 divisors (see below), whose sum is σ = 1299695584. Its totient is φ = 628884720.

The previous prime is 917123723. The next prime is 917123731. The reversal of 917123725 is 527321719.

917123725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 917123725 - 2¹ = 917123723 is a prime.

It is a super-2 number, since 2×917123725² = 1682231853915751250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917123723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2620179 + ... + 2620528.

Almost surely, 2^917123725 is an apocalyptic number.

It is an amenable number.

917123725 is a deficient number, since it is larger than the sum of its proper divisors (382571859).

917123725 is a wasteful number, since it uses less digits than its factorization.

917123725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240724 (or 5240719 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 917123725 is about 30284.0506702786. The cubic root of 917123725 is about 971.5742054634.

It can be divided in two parts, 9171 and 23725, that added together give a triangular number (32896 = T₂₅₆).

The spelling of 917123725 in words is "nine hundred seventeen million, one hundred twenty-three thousand, seven hundred twenty-five".