87994788 has 72 divisors (see below), whose sum is σ = 252921312. Its totient is φ = 23659776.

The previous prime is 87994759. The next prime is 87994801. The reversal of 87994788 is 88749978.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5595 + ... + 14397.

It is an arithmetic number, because the mean of its divisors is an integer number (3512796).

Almost surely, 2^87994788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87994788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126460656).

87994788 is an abundant number, since it is smaller than the sum of its proper divisors (164926524).

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

87994788 is a wasteful number, since it uses less digits than its factorization.

87994788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841 (or 8832 counting only the distinct ones).

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

The square root of 87994788 is about 9380.5537150000. The cubic root of 87994788 is about 444.7872365888.

The spelling of 87994788 in words is "eighty-seven million, nine hundred ninety-four thousand, seven hundred eighty-eight".