87715556 has 12 divisors (see below), whose sum is σ = 153567792. Its totient is φ = 43839048.

The previous prime is 87715553. The next prime is 87715577. The reversal of 87715556 is 65551778.

It is not an unprimeable number, because it can be changed into a prime (87715553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16211 + ... + 20933.

It is an arithmetic number, because the mean of its divisors is an integer number (12797316).

Almost surely, 2^87715556 is an apocalyptic number.

It is an amenable number.

87715556 is a deficient number, since it is larger than the sum of its proper divisors (65852236).

87715556 is a wasteful number, since it uses less digits than its factorization.

87715556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370 (or 9368 counting only the distinct ones).

The product of its digits is 294000, while the sum is 44.

The square root of 87715556 is about 9365.6583324399. The cubic root of 87715556 is about 444.3162600796.

The spelling of 87715556 in words is "eighty-seven million, seven hundred fifteen thousand, five hundred fifty-six".