83928782 has 16 divisors (see below), whose sum is σ = 144003552. Its totient is φ = 35938080.

The previous prime is 83928751. The next prime is 83928791. The reversal of 83928782 is 28782938.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21932 + ... + 25472.

It is an arithmetic number, because the mean of its divisors is an integer number (9000222).

Almost surely, 2^83928782 is an apocalyptic number.

83928782 is a deficient number, since it is larger than the sum of its proper divisors (60074770).

83928782 is a wasteful number, since it uses less digits than its factorization.

83928782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243.

The product of its digits is 387072, while the sum is 47.

The square root of 83928782 is about 9161.2653056224. The cubic root of 83928782 is about 437.8281089165.

The spelling of 83928782 in words is "eighty-three million, nine hundred twenty-eight thousand, seven hundred eighty-two".