87819936 has 24 divisors (see below), whose sum is σ = 230527584. Its totient is φ = 29273280.

The previous prime is 87819899. The next prime is 87819947. The reversal of 87819936 is 63991878.

It is a tau number, because it is divible by the number of its divisors (24).

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, 457300 + ... + 457491.

It is an arithmetic number, because the mean of its divisors is an integer number (9605316).

Almost surely, 2^87819936 is an apocalyptic number.

It is an amenable number.

87819936 is an abundant number, since it is smaller than the sum of its proper divisors (142707648).

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

87819936 is a wasteful number, since it uses less digits than its factorization.

87819936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914804 (or 914796 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 87819936 is about 9371.2291616415. The cubic root of 87819936 is about 444.4924331146.

The spelling of 87819936 in words is "eighty-seven million, eight hundred nineteen thousand, nine hundred thirty-six".