83989600 has 36 divisors (see below), whose sum is σ = 205041564. Its totient is φ = 33595520.

The previous prime is 83989579. The next prime is 83989603. The reversal of 83989600 is 698938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83989603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51694 + ... + 53293.

It is an arithmetic number, because the mean of its divisors is an integer number (5695599).

Almost surely, 2^83989600 is an apocalyptic number.

83989600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83989600 is an abundant number, since it is smaller than the sum of its proper divisors (121051964).

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

83989600 is a wasteful number, since it uses less digits than its factorization.

83989600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105007 (or 104994 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 83989600 is about 9164.5840058346. The cubic root of 83989600 is about 437.9338390368.

The spelling of 83989600 in words is "eighty-three million, nine hundred eighty-nine thousand, six hundred".