87719028 has 48 divisors (see below), whose sum is σ = 210651840. Its totient is φ = 28397824.

The previous prime is 87719003. The next prime is 87719069. The reversal of 87719028 is 82091778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67408 + ... + 68696.

It is an arithmetic number, because the mean of its divisors is an integer number (4388580).

Almost surely, 2^87719028 is an apocalyptic number.

It is an amenable number.

87719028 is an abundant number, since it is smaller than the sum of its proper divisors (122932812).

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

87719028 is a wasteful number, since it uses less digits than its factorization.

87719028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 87719028 is about 9365.8436886380. The cubic root of 87719028 is about 444.3221223833.

The spelling of 87719028 in words is "eighty-seven million, seven hundred nineteen thousand, twenty-eight".