87497660 has 24 divisors (see below), whose sum is σ = 193416720. Its totient is φ = 33156864.

The previous prime is 87497659. The next prime is 87497671. The reversal of 87497660 is 6679478.

It is a happy number.

It is a congruent number.

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, 114749 + ... + 115508.

It is an arithmetic number, because the mean of its divisors is an integer number (8059030).

Almost surely, 2^87497660 is an apocalyptic number.

It is an amenable number.

87497660 is an abundant number, since it is smaller than the sum of its proper divisors (105919060).

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

87497660 is a wasteful number, since it uses less digits than its factorization.

87497660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230285 (or 230283 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 87497660 is about 9354.0183878374. The cubic root of 87497660 is about 443.9480433210.

The spelling of 87497660 in words is "eighty-seven million, four hundred ninety-seven thousand, six hundred sixty".