87847656 has 32 divisors (see below), whose sum is σ = 236513760. Its totient is φ = 27029952.

The previous prime is 87847607. The next prime is 87847681. The reversal of 87847656 is 65674878.

It is a junction number, because it is equal to n+sod(n) for n = 87847599 and 87847608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140470 + ... + 141093.

It is an arithmetic number, because the mean of its divisors is an integer number (7391055).

Almost surely, 2^87847656 is an apocalyptic number.

It is an amenable number.

87847656 is an abundant number, since it is smaller than the sum of its proper divisors (148666104).

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

87847656 is a wasteful number, since it uses less digits than its factorization.

87847656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281585 (or 281581 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 87847656 is about 9372.7080398357. The cubic root of 87847656 is about 444.5391955949.

The spelling of 87847656 in words is "eighty-seven million, eight hundred forty-seven thousand, six hundred fifty-six".