89390988684 has 144 divisors (see below), whose sum is σ = 247768204320. Its totient is φ = 27063429120.

The previous prime is 89390988653. The next prime is 89390988691. The reversal of 89390988684 is 48688909398.

89390988684 is a `hidden beast` number, since 89 + 390 + 9 + 8 + 86 + 84 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1956007 + ... + 2001185.

It is an arithmetic number, because the mean of its divisors is an integer number (1720612530).

Almost surely, 2^89390988684 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 89390988684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123884102160).

89390988684 is an abundant number, since it is smaller than the sum of its proper divisors (158377215636).

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

89390988684 is a wasteful number, since it uses less digits than its factorization.

89390988684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45320 (or 45315 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 72.

The spelling of 89390988684 in words is "eighty-nine billion, three hundred ninety million, nine hundred eighty-eight thousand, six hundred eighty-four".