87609788 has 12 divisors (see below), whose sum is σ = 175219632. Its totient is φ = 37547040.

The previous prime is 87609761. The next prime is 87609799. The reversal of 87609788 is 88790678.

87609788 is an admirable number.

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, 1564433 + ... + 1564488.

It is an arithmetic number, because the mean of its divisors is an integer number (14601636).

Almost surely, 2^87609788 is an apocalyptic number.

It is an amenable number.

87609788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87609788 is a wasteful number, since it uses less digits than its factorization.

87609788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128932 (or 3128930 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 87609788 is about 9360.0100427297. The cubic root of 87609788 is about 444.1376017521.

The spelling of 87609788 in words is "eighty-seven million, six hundred nine thousand, seven hundred eighty-eight".