764796980 has 12 divisors (see below), whose sum is σ = 1606073700. Its totient is φ = 305918784.

The previous prime is 764796979. The next prime is 764797039. The reversal of 764796980 is 89697467.

It can be written as a sum of positive squares in 2 ways, for example, as 155102116 + 609694864 = 12454^2 + 24692^2 .

It is a congruent number.

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, 19119905 + ... + 19119944.

It is an arithmetic number, because the mean of its divisors is an integer number (133839475).

Almost surely, 2^764796980 is an apocalyptic number.

It is an amenable number.

764796980 is an abundant number, since it is smaller than the sum of its proper divisors (841276720).

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

764796980 is a wasteful number, since it uses less digits than its factorization.

764796980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38239858 (or 38239856 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 56.

The square root of 764796980 is about 27654.9630265528. The cubic root of 764796980 is about 914.4965149862.

The spelling of 764796980 in words is "seven hundred sixty-four million, seven hundred ninety-six thousand, nine hundred eighty".