83807572 has 12 divisors (see below), whose sum is σ = 146775636. Its totient is φ = 41871680.

The previous prime is 83807557. The next prime is 83807573. The reversal of 83807572 is 27570838.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 58767556 = 5004^2 + 7666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83807573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (12231303).

Almost surely, 2^83807572 is an apocalyptic number.

It is an amenable number.

83807572 is a deficient number, since it is larger than the sum of its proper divisors (62968064).

83807572 is a wasteful number, since it uses less digits than its factorization.

83807572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16058 (or 16056 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 83807572 is about 9154.6475628502. The cubic root of 83807572 is about 437.6172368262.

The spelling of 83807572 in words is "eighty-three million, eight hundred seven thousand, five hundred seventy-two".