10686172 has 24 divisors (see below), whose sum is σ = 21647360. Its totient is φ = 4520880.

The previous prime is 10686157. The next prime is 10686187. The reversal of 10686172 is 27168601.

10686172 = 164² + 165² + ... + 331².

10686172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10686157) and next prime (10686187).

It is a super-2 number, since 2×10686172² = 228388544027168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 4627.

Almost surely, 2^10686172 is an apocalyptic number.

It is an amenable number.

10686172 is an abundant number, since it is smaller than the sum of its proper divisors (10961188).

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

10686172 is a wasteful number, since it uses less digits than its factorization.

10686172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921 (or 4919 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 10686172 is about 3268.9710919493. The cubic root of 10686172 is about 220.2625790384.

The spelling of 10686172 in words is "ten million, six hundred eighty-six thousand, one hundred seventy-two".