769728972 has 18 divisors (see below), whose sum is σ = 1796258548. Its totient is φ = 256544288.

The previous prime is 769728959. The next prime is 769728983. The reversal of 769728972 is 279827967.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92104 + ... + 100112.

Almost surely, 2^769728972 is an apocalyptic number.

It is an amenable number.

769728972 is an abundant number, since it is smaller than the sum of its proper divisors (1026529576).

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

769728972 is an frugal number, since it uses more digits than its factorization.

769728972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16025 (or 8014 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 57.

The square root of 769728972 is about 27743.9898356383. The cubic root of 769728972 is about 916.4580938722.

The spelling of 769728972 in words is "seven hundred sixty-nine million, seven hundred twenty-eight thousand, nine hundred seventy-two".