87719568 has 40 divisors (see below), whose sum is σ = 227042016. Its totient is φ = 29184000.

The previous prime is 87719551. The next prime is 87719581. The reversal of 87719568 is 86591778.

It is a super-2 number, since 2×87719568² = 15389445220213248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87719568.

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, 29343 + ... + 32193.

Almost surely, 2^87719568 is an apocalyptic number.

It is an amenable number.

87719568 is an abundant number, since it is smaller than the sum of its proper divisors (139322448).

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

87719568 is a wasteful number, since it uses less digits than its factorization.

87719568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3497 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 87719568 is about 9365.8725167493. The cubic root of 87719568 is about 444.3230341333.

The spelling of 87719568 in words is "eighty-seven million, seven hundred nineteen thousand, five hundred sixty-eight".