83579091 has 16 divisors (see below), whose sum is σ = 113871744. Its totient is φ = 54516224.

The previous prime is 83579071. The next prime is 83579137. The reversal of 83579091 is 19097538.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83579091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83579071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25075 + ... + 28211.

It is an arithmetic number, because the mean of its divisors is an integer number (7116984).

Almost surely, 2^83579091 is an apocalyptic number.

83579091 is a deficient number, since it is larger than the sum of its proper divisors (30292653).

83579091 is a wasteful number, since it uses less digits than its factorization.

83579091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 83579091 is about 9142.1600839189. The cubic root of 83579091 is about 437.2191891597.

The spelling of 83579091 in words is "eighty-three million, five hundred seventy-nine thousand, ninety-one".