715007681 has 4 divisors (see below), whose sum is σ = 715291392. Its totient is φ = 714723972.

The previous prime is 715007669. The next prime is 715007687. The reversal of 715007681 is 186700517.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186700517 = 19 ⋅9826343.

It is a cyclic number.

It is not a de Polignac number, because 715007681 - 2¹⁰ = 715006657 is a prime.

It is a super-2 number, since 2×715007681² = 1022471967777995522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715007687) 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, 138041 + ... + 143126.

It is an arithmetic number, because the mean of its divisors is an integer number (178822848).

Almost surely, 2^715007681 is an apocalyptic number.

It is an amenable number.

715007681 is a deficient number, since it is larger than the sum of its proper divisors (283711).

715007681 is a wasteful number, since it uses less digits than its factorization.

715007681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283710.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 715007681 is about 26739.6275404127. The cubic root of 715007681 is about 894.2046056958.

The spelling of 715007681 in words is "seven hundred fifteen million, seven thousand, six hundred eighty-one".