872484856 has 8 divisors (see below), whose sum is σ = 1635909120. Its totient is φ = 436242424.

The previous prime is 872484817. The next prime is 872484857. The reversal of 872484856 is 658484278.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×872484856² = 1522459647898681472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872484857) 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 as a sum of consecutive naturals, namely, 54530296 + ... + 54530311.

It is an arithmetic number, because the mean of its divisors is an integer number (204488640).

Almost surely, 2^872484856 is an apocalyptic number.

It is an amenable number.

872484856 is a deficient number, since it is larger than the sum of its proper divisors (763424264).

872484856 is a wasteful number, since it uses less digits than its factorization.

872484856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109060613 (or 109060609 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The square root of 872484856 is about 29537.8546275792. The cubic root of 872484856 is about 955.5482742990.

The spelling of 872484856 in words is "eight hundred seventy-two million, four hundred eighty-four thousand, eight hundred fifty-six".