87708512 has 24 divisors (see below), whose sum is σ = 176890392. Its totient is φ = 42784000.

The previous prime is 87708497. The next prime is 87708529. The reversal of 87708512 is 21580778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32114 + ... + 34737.

It is an arithmetic number, because the mean of its divisors is an integer number (7370433).

Almost surely, 2^87708512 is an apocalyptic number.

87708512 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87708512 is an abundant number, since it is smaller than the sum of its proper divisors (89181880).

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

87708512 is a wasteful number, since it uses less digits than its factorization.

87708512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66902 (or 66894 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 87708512 is about 9365.2822701721. The cubic root of 87708512 is about 444.3043661516.

The spelling of 87708512 in words is "eighty-seven million, seven hundred eight thousand, five hundred twelve".