83639752 has 16 divisors (see below), whose sum is σ = 179228160. Its totient is φ = 35845584.

The previous prime is 83639737. The next prime is 83639761. The reversal of 83639752 is 25793638.

It is a super-2 number, since 2×83639752² = 13991216229243008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83639699 and 83639708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746728 + ... + 746839.

It is an arithmetic number, because the mean of its divisors is an integer number (11201760).

Almost surely, 2^83639752 is an apocalyptic number.

It is an amenable number.

83639752 is an abundant number, since it is smaller than the sum of its proper divisors (95588408).

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

83639752 is a wasteful number, since it uses less digits than its factorization.

83639752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493580 (or 1493576 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 83639752 is about 9145.4771335344. The cubic root of 83639752 is about 437.3249402472.

The spelling of 83639752 in words is "eighty-three million, six hundred thirty-nine thousand, seven hundred fifty-two".