87969968 has 20 divisors (see below), whose sum is σ = 180468360. Its totient is φ = 41397504.

The previous prime is 87969953. The next prime is 87970007. The reversal of 87969968 is 86996978.

It is a self number, because there is not a number n which added to its sum of digits gives 87969968.

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, 161438 + ... + 161981.

It is an arithmetic number, because the mean of its divisors is an integer number (9023418).

Almost surely, 2^87969968 is an apocalyptic number.

It is an amenable number.

87969968 is an abundant number, since it is smaller than the sum of its proper divisors (92498392).

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

87969968 is a wasteful number, since it uses less digits than its factorization.

87969968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323444 (or 323438 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 62.

The square root of 87969968 is about 9379.2306720754. The cubic root of 87969968 is about 444.7454134400.

The spelling of 87969968 in words is "eighty-seven million, nine hundred sixty-nine thousand, nine hundred sixty-eight".