87868028 has 24 divisors (see below), whose sum is σ = 159803280. Its totient is φ = 42224000.

The previous prime is 87867991. The next prime is 87868031. The reversal of 87868028 is 82086878.

It is a congruent number.

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, 25403 + ... + 28653.

It is an arithmetic number, because the mean of its divisors is an integer number (6658470).

Almost surely, 2^87868028 is an apocalyptic number.

It is an amenable number.

87868028 is a deficient number, since it is larger than the sum of its proper divisors (71935252).

87868028 is a wasteful number, since it uses less digits than its factorization.

87868028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517 (or 3515 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 47.

The square root of 87868028 is about 9373.7947491931. The cubic root of 87868028 is about 444.5735560356.

The spelling of 87868028 in words is "eighty-seven million, eight hundred sixty-eight thousand, twenty-eight".