715864515 has 16 divisors (see below), whose sum is σ = 1162480128. Its totient is φ = 376095456.

The previous prime is 715864483. The next prime is 715864517. The reversal of 715864515 is 515468517.

It is not a de Polignac number, because 715864515 - 2⁵ = 715864483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (715864517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355147 + ... + 357156.

It is an arithmetic number, because the mean of its divisors is an integer number (72655008).

Almost surely, 2^715864515 is an apocalyptic number.

715864515 is a deficient number, since it is larger than the sum of its proper divisors (446615613).

715864515 is a wasteful number, since it uses less digits than its factorization.

715864515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712378.

The product of its digits is 168000, while the sum is 42.

The square root of 715864515 is about 26755.6445446564. The cubic root of 715864515 is about 894.5616550342.

The spelling of 715864515 in words is "seven hundred fifteen million, eight hundred sixty-four thousand, five hundred fifteen".