770705872 has 20 divisors (see below), whose sum is σ = 1497322816. Its totient is φ = 384300000.

The previous prime is 770705869. The next prime is 770705939. The reversal of 770705872 is 278507077.

It is a super-2 number, since 2×770705872² = 1187975082270560768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59754 + ... + 71497.

Almost surely, 2^770705872 is an apocalyptic number.

It is an amenable number.

770705872 is a deficient number, since it is larger than the sum of its proper divisors (726616944).

770705872 is a wasteful number, since it uses less digits than its factorization.

770705872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131626 (or 131620 counting only the distinct ones).

The product of its (nonzero) digits is 192080, while the sum is 43.

The square root of 770705872 is about 27761.5898680173. The cubic root of 770705872 is about 916.8456369600.

The spelling of 770705872 in words is "seven hundred seventy million, seven hundred five thousand, eight hundred seventy-two".