87591608 has 32 divisors (see below), whose sum is σ = 179780160. Its totient is φ = 39761280.

The previous prime is 87591607. The next prime is 87591619. The reversal of 87591608 is 80619578.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87591601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560 + ... + 13247.

It is an arithmetic number, because the mean of its divisors is an integer number (5618130).

Almost surely, 2^87591608 is an apocalyptic number.

It is an amenable number.

87591608 is an abundant number, since it is smaller than the sum of its proper divisors (92188552).

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

87591608 is a wasteful number, since it uses less digits than its factorization.

87591608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13887 (or 13883 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 87591608 is about 9359.0388395390. The cubic root of 87591608 is about 444.1068784719.

The spelling of 87591608 in words is "eighty-seven million, five hundred ninety-one thousand, six hundred eight".