83988782 has 16 divisors (see below), whose sum is σ = 128650032. Its totient is φ = 41109120.

The previous prime is 83988757. The next prime is 83988803. The reversal of 83988782 is 28788938.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85478 + ... + 86454.

It is an arithmetic number, because the mean of its divisors is an integer number (8040627).

Almost surely, 2^83988782 is an apocalyptic number.

83988782 is a deficient number, since it is larger than the sum of its proper divisors (44661250).

83988782 is a wasteful number, since it uses less digits than its factorization.

83988782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 1548288, while the sum is 53.

The square root of 83988782 is about 9164.5393774046. The cubic root of 83988782 is about 437.9324173091.

The spelling of 83988782 in words is "eighty-three million, nine hundred eighty-eight thousand, seven hundred eighty-two".