855977796 has 36 divisors (see below), whose sum is σ = 2196022192. Its totient is φ = 281066544.

The previous prime is 855977791. The next prime is 855977809. The reversal of 855977796 is 697779558.

855977796 is a `hidden beast` number, since 8 + 559 + 7 + 7 + 79 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (855977791) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 175030 + ... + 179853.

Almost surely, 2^855977796 is an apocalyptic number.

It is an amenable number.

855977796 is an abundant number, since it is smaller than the sum of its proper divisors (1340044396).

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

855977796 is a wasteful number, since it uses less digits than its factorization.

855977796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354960 (or 354955 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 63.

The square root of 855977796 is about 29257.0982156467. The cubic root of 855977796 is about 949.4836699305.

The spelling of 855977796 in words is "eight hundred fifty-five million, nine hundred seventy-seven thousand, seven hundred ninety-six".