83997888 has 112 divisors (see below), whose sum is σ = 243145056. Its totient is φ = 25436160.

The previous prime is 83997869. The next prime is 83997913. The reversal of 83997888 is 88879938.

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, 181978 + ... + 182438.

It is an arithmetic number, because the mean of its divisors is an integer number (2170938).

Almost surely, 2^83997888 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 83997888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121572528).

83997888 is an abundant number, since it is smaller than the sum of its proper divisors (159147168).

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

83997888 is a wasteful number, since it uses less digits than its factorization.

83997888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 552 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The square root of 83997888 is about 9165.0361701414. The cubic root of 83997888 is about 437.9482435039.

The spelling of 83997888 in words is "eighty-three million, nine hundred ninety-seven thousand, eight hundred eighty-eight".