854985920 has 56 divisors (see below), whose sum is σ = 2038502400. Its totient is φ = 341563392.

The previous prime is 854985889. The next prime is 854986003. The reversal of 854985920 is 29589458.

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 7 ways as a sum of consecutive naturals, for example, 408236 + ... + 410324.

Almost surely, 2^854985920 is an apocalyptic number.

854985920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

854985920 is an abundant number, since it is smaller than the sum of its proper divisors (1183516480).

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

854985920 is a wasteful number, since it uses less digits than its factorization.

854985920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The square root of 854985920 is about 29240.1422705157. The cubic root of 854985920 is about 949.1167857791.

The spelling of 854985920 in words is "eight hundred fifty-four million, nine hundred eighty-five thousand, nine hundred twenty".