83980500 has 48 divisors (see below), whose sum is σ = 244555584. Its totient is φ = 22394400.

The previous prime is 83980471. The next prime is 83980529. The reversal of 83980500 is 508938.

It is an interprime number because it is at equal distance from previous prime (83980471) and next prime (83980529).

It is a congruent number.

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, 26494 + ... + 29493.

It is an arithmetic number, because the mean of its divisors is an integer number (5094908).

Almost surely, 2^83980500 is an apocalyptic number.

It is an amenable number.

83980500 is an abundant number, since it is smaller than the sum of its proper divisors (160575084).

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

83980500 is a wasteful number, since it uses less digits than its factorization.

83980500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56009 (or 55997 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 83980500 is about 9164.0875159505. The cubic root of 83980500 is about 437.9180222299.

The spelling of 83980500 in words is "eighty-three million, nine hundred eighty thousand, five hundred".