839772872 has 16 divisors (see below), whose sum is σ = 1643034240. Its totient is φ = 401630416.

The previous prime is 839772853. The next prime is 839772881. The reversal of 839772872 is 278277938.

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, 2281808 + ... + 2282175.

It is an arithmetic number, because the mean of its divisors is an integer number (102689640).

Almost surely, 2^839772872 is an apocalyptic number.

It is an amenable number.

839772872 is a deficient number, since it is larger than the sum of its proper divisors (803261368).

839772872 is a wasteful number, since it uses less digits than its factorization.

839772872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564012 (or 4564008 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 53.

The square root of 839772872 is about 28978.8348972142. The cubic root of 839772872 is about 943.4537470959.

The spelling of 839772872 in words is "eight hundred thirty-nine million, seven hundred seventy-two thousand, eight hundred seventy-two".