88121992 has 48 divisors (see below), whose sum is σ = 196335360. Its totient is φ = 36955296.

The previous prime is 88121989. The next prime is 88122011. The reversal of 88121992 is 29912188.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16033 + ... + 20815.

It is an arithmetic number, because the mean of its divisors is an integer number (4090320).

Almost surely, 2^88121992 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 88121992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98167680).

88121992 is an abundant number, since it is smaller than the sum of its proper divisors (108213368).

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

88121992 is a wasteful number, since it uses less digits than its factorization.

88121992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850 (or 4839 counting only the distinct ones).

The product of its digits is 20736, while the sum is 40.

The square root of 88121992 is about 9387.3314632008. The cubic root of 88121992 is about 445.0014594069.

The spelling of 88121992 in words is "eighty-eight million, one hundred twenty-one thousand, nine hundred ninety-two".