915495864 has 48 divisors (see below), whose sum is σ = 2392609800. Its totient is φ = 291893184.

The previous prime is 915495859. The next prime is 915495877. The reversal of 915495864 is 468594519.

It is a super-2 number, since 2×915495864² = 1676265354002212992, 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 11 ways as a sum of consecutive naturals, for example, 23359 + ... + 48750.

Almost surely, 2^915495864 is an apocalyptic number.

It is an amenable number.

915495864 is an abundant number, since it is smaller than the sum of its proper divisors (1477113936).

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

915495864 is a wasteful number, since it uses less digits than its factorization.

915495864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72164 (or 72137 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 915495864 is about 30257.1621934378. The cubic root of 915495864 is about 970.9990288208. Note that the first 3 decimals are identical.

The spelling of 915495864 in words is "nine hundred fifteen million, four hundred ninety-five thousand, eight hundred sixty-four".