87442856 has 32 divisors (see below), whose sum is σ = 166924800. Its totient is φ = 42936960.

The previous prime is 87442813. The next prime is 87442891. The reversal of 87442856 is 65824478.

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, 135671 + ... + 136313.

It is an arithmetic number, because the mean of its divisors is an integer number (5216400).

Almost surely, 2^87442856 is an apocalyptic number.

It is an amenable number.

87442856 is a deficient number, since it is larger than the sum of its proper divisors (79481944).

87442856 is a wasteful number, since it uses less digits than its factorization.

87442856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 925 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 87442856 is about 9351.0884927906. The cubic root of 87442856 is about 443.8553352797.

The spelling of 87442856 in words is "eighty-seven million, four hundred forty-two thousand, eight hundred fifty-six".