872859456 has 112 divisors (see below), whose sum is σ = 2932663680. Its totient is φ = 249384960.

The previous prime is 872859439. The next prime is 872859461. The reversal of 872859456 is 654958278.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23985 + ... + 48176.

Almost surely, 2^872859456 is an apocalyptic number.

It is an amenable number.

872859456 is an abundant number, since it is smaller than the sum of its proper divisors (2059804224).

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

872859456 is a wasteful number, since it uses less digits than its factorization.

872859456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72189 (or 72173 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 872859456 is about 29544.1949628011. The cubic root of 872859456 is about 955.6850091146.

The spelling of 872859456 in words is "eight hundred seventy-two million, eight hundred fifty-nine thousand, four hundred fifty-six".