769917664 has 48 divisors (see below), whose sum is σ = 1536796800. Its totient is φ = 379661184.

The previous prime is 769917653. The next prime is 769917671. The reversal of 769917664 is 466719967.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795709 + ... + 796675.

It is an arithmetic number, because the mean of its divisors is an integer number (32016600).

Almost surely, 2^769917664 is an apocalyptic number.

It is an amenable number.

769917664 is a deficient number, since it is larger than the sum of its proper divisors (766879136).

769917664 is a wasteful number, since it uses less digits than its factorization.

769917664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295 (or 1287 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 55.

The square root of 769917664 is about 27747.3902196225. The cubic root of 769917664 is about 916.5329748534.

The spelling of 769917664 in words is "seven hundred sixty-nine million, nine hundred seventeen thousand, six hundred sixty-four".