87897984 has 32 divisors (see below), whose sum is σ = 233480040. Its totient is φ = 29299200.

The previous prime is 87897959. The next prime is 87898003. The reversal of 87897984 is 48979878.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114067 + ... + 114834.

Almost surely, 2^87897984 is an apocalyptic number.

It is an amenable number.

87897984 is an abundant number, since it is smaller than the sum of its proper divisors (145582056).

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

87897984 is a wasteful number, since it uses less digits than its factorization.

87897984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228918 (or 228906 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 60.

The square root of 87897984 is about 9375.3924717848. The cubic root of 87897984 is about 444.6240716881.

The spelling of 87897984 in words is "eighty-seven million, eight hundred ninety-seven thousand, nine hundred eighty-four".