87113660 has 12 divisors (see below), whose sum is σ = 182938728. Its totient is φ = 34845456.

The previous prime is 87113639. The next prime is 87113681. The reversal of 87113660 is 6631178.

It is an interprime number because it is at equal distance from previous prime (87113639) and next prime (87113681).

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, 2177822 + ... + 2177861.

It is an arithmetic number, because the mean of its divisors is an integer number (15244894).

Almost surely, 2^87113660 is an apocalyptic number.

It is an amenable number.

87113660 is an abundant number, since it is smaller than the sum of its proper divisors (95825068).

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

87113660 is a wasteful number, since it uses less digits than its factorization.

87113660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4355692 (or 4355690 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 87113660 is about 9333.4698799535. The cubic root of 87113660 is about 443.2976409855.

The spelling of 87113660 in words is "eighty-seven million, one hundred thirteen thousand, six hundred sixty".