83990912 has 32 divisors (see below), whose sum is σ = 168636600. Its totient is φ = 41666560.

The previous prime is 83990909. The next prime is 83990923. The reversal of 83990912 is 21909938.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 83990912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14264 + ... + 19272.

Almost surely, 2^83990912 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 83990912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84318300).

83990912 is an abundant number, since it is smaller than the sum of its proper divisors (84645688).

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

83990912 is a wasteful number, since it uses less digits than its factorization.

83990912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 83990912 is about 9164.6555854544. The cubic root of 83990912 is about 437.9361193438.

The spelling of 83990912 in words is "eighty-three million, nine hundred ninety thousand, nine hundred twelve".