772869408 has 48 divisors (see below), whose sum is σ = 2030245056. Its totient is φ = 257437440.

The previous prime is 772869389. The next prime is 772869413. The reversal of 772869408 is 804968277.

It is a tau number, because it is divible by the number of its divisors (48).

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, 218373 + ... + 221883.

It is an arithmetic number, because the mean of its divisors is an integer number (42296772).

Almost surely, 2^772869408 is an apocalyptic number.

It is an amenable number.

772869408 is an abundant number, since it is smaller than the sum of its proper divisors (1257375648).

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

772869408 is a wasteful number, since it uses less digits than its factorization.

772869408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817 (or 5809 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 772869408 is about 27800.5289158318. The cubic root of 772869408 is about 917.7027625930.

The spelling of 772869408 in words is "seven hundred seventy-two million, eight hundred sixty-nine thousand, four hundred eight".