769545972 has 72 divisors (see below), whose sum is σ = 2167150440. Its totient is φ = 228614400.

The previous prime is 769545971. The next prime is 769545989. The reversal of 769545972 is 279545967.

769545972 is a `hidden beast` number, since 7 + 6 + 9 + 545 + 97 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 59536656 + 710009316 = 7716^2 + 26646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769545971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14779 + ... + 41922.

Almost surely, 2^769545972 is an apocalyptic number.

It is an amenable number.

769545972 is an abundant number, since it is smaller than the sum of its proper divisors (1397604468).

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

769545972 is a wasteful number, since it uses less digits than its factorization.

769545972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56753 (or 56748 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 54.

The square root of 769545972 is about 27740.6916280038. The cubic root of 769545972 is about 916.3854600275.

The spelling of 769545972 in words is "seven hundred sixty-nine million, five hundred forty-five thousand, nine hundred seventy-two".