715665651 has 4 divisors (see below), whose sum is σ = 954220872. Its totient is φ = 477110432.

The previous prime is 715665617. The next prime is 715665667. The reversal of 715665651 is 156566517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 715665651 - 2⁷ = 715665523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (715661651) 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, 119277606 + ... + 119277611.

It is an arithmetic number, because the mean of its divisors is an integer number (238555218).

Almost surely, 2^715665651 is an apocalyptic number.

715665651 is a deficient number, since it is larger than the sum of its proper divisors (238555221).

715665651 is a wasteful number, since it uses less digits than its factorization.

715665651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238555220.

The product of its digits is 189000, while the sum is 42.

The square root of 715665651 is about 26751.9279865957. The cubic root of 715665651 is about 894.4788122706.

The spelling of 715665651 in words is "seven hundred fifteen million, six hundred sixty-five thousand, six hundred fifty-one".