715215863 has 4 divisors (see below), whose sum is σ = 717376968. Its totient is φ = 713054760.

The previous prime is 715215793. The next prime is 715215899. The reversal of 715215863 is 368512517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368512517 = 7283 ⋅50599.

It is a cyclic number.

It is not a de Polignac number, because 715215863 - 2⁸ = 715215607 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 (715215463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080056 + ... + 1080717.

It is an arithmetic number, because the mean of its divisors is an integer number (179344242).

Almost surely, 2^715215863 is an apocalyptic number.

715215863 is a deficient number, since it is larger than the sum of its proper divisors (2161105).

715215863 is a wasteful number, since it uses less digits than its factorization.

715215863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161104.

The product of its digits is 50400, while the sum is 38.

The square root of 715215863 is about 26743.5200188756. The cubic root of 715215863 is about 894.2913829635.

The spelling of 715215863 in words is "seven hundred fifteen million, two hundred fifteen thousand, eight hundred sixty-three".