83728684 has 36 divisors (see below), whose sum is σ = 164172960. Its totient is φ = 37302720.

The previous prime is 83728679. The next prime is 83728691. The reversal of 83728684 is 48682738.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17469 + ... + 21739.

It is an arithmetic number, because the mean of its divisors is an integer number (4560360).

Almost surely, 2^83728684 is an apocalyptic number.

It is an amenable number.

83728684 is a deficient number, since it is larger than the sum of its proper divisors (80444276).

83728684 is a wasteful number, since it uses less digits than its factorization.

83728684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330 (or 4315 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 83728684 is about 9150.3379172575. The cubic root of 83728684 is about 437.4798841363.

The spelling of 83728684 in words is "eighty-three million, seven hundred twenty-eight thousand, six hundred eighty-four".