715865023 has 4 divisors (see below), whose sum is σ = 715937728. Its totient is φ = 715792320.

The previous prime is 715865009. The next prime is 715865047. The reversal of 715865023 is 320568517.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 320568517 = 5743 ⋅55819.

It is a cyclic number.

It is not a de Polignac number, because 715865023 - 2⁵ = 715864991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715865063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18738 + ... + 42223.

It is an arithmetic number, because the mean of its divisors is an integer number (178984432).

Almost surely, 2^715865023 is an apocalyptic number.

715865023 is a deficient number, since it is larger than the sum of its proper divisors (72705).

715865023 is a wasteful number, since it uses less digits than its factorization.

715865023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72704.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 715865023 is about 26755.6540379786. The cubic root of 715865023 is about 894.5618666372.

The spelling of 715865023 in words is "seven hundred fifteen million, eight hundred sixty-five thousand, twenty-three".