720664096 has 24 divisors (see below), whose sum is σ = 1457155980. Its totient is φ = 350592768.

The previous prime is 720664079. The next prime is 720664111. The reversal of 720664096 is 690466027.

It can be written as a sum of positive squares in 2 ways, for example, as 706496400 + 14167696 = 26580^2 + 3764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303151 + ... + 305518.

Almost surely, 2^720664096 is an apocalyptic number.

It is an amenable number.

720664096 is an abundant number, since it is smaller than the sum of its proper divisors (736491884).

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

720664096 is a wasteful number, since it uses less digits than its factorization.

720664096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608716 (or 608708 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 720664096 is about 26845.1875761746. The cubic root of 720664096 is about 896.5564278700.

The spelling of 720664096 in words is "seven hundred twenty million, six hundred sixty-four thousand, ninety-six".