769421728 has 24 divisors (see below), whose sum is σ = 1518072192. Its totient is φ = 383879616.

The previous prime is 769421711. The next prime is 769421743. The reversal of 769421728 is 827124967.

769421728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 10800 + ... + 40687.

It is an arithmetic number, because the mean of its divisors is an integer number (63253008).

Almost surely, 2^769421728 is an apocalyptic number.

It is an amenable number.

769421728 is a deficient number, since it is larger than the sum of its proper divisors (748650464).

769421728 is a wasteful number, since it uses less digits than its factorization.

769421728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51964 (or 51956 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 769421728 is about 27738.4521558071. The cubic root of 769421728 is about 916.3361402436.

The spelling of 769421728 in words is "seven hundred sixty-nine million, four hundred twenty-one thousand, seven hundred twenty-eight".