715640620 has 12 divisors (see below), whose sum is σ = 1502845344. Its totient is φ = 286256240.

The previous prime is 715640587. The next prime is 715640663. The reversal of 715640620 is 26046517.

It is a happy number.

It is an unprimeable number.

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, 17890996 + ... + 17891035.

It is an arithmetic number, because the mean of its divisors is an integer number (125237112).

Almost surely, 2^715640620 is an apocalyptic number.

It is an amenable number.

715640620 is an abundant number, since it is smaller than the sum of its proper divisors (787204724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

715640620 is a wasteful number, since it uses less digits than its factorization.

715640620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35782040 (or 35782038 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 715640620 is about 26751.4601470649. The cubic root of 715640620 is about 894.4683837695.

The spelling of 715640620 in words is "seven hundred fifteen million, six hundred forty thousand, six hundred twenty".