82609580 has 12 divisors (see below), whose sum is σ = 173480160. Its totient is φ = 33043824.

The previous prime is 82609577. The next prime is 82609619. The reversal of 82609580 is 8590628.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065220 + ... + 2065259.

It is an arithmetic number, because the mean of its divisors is an integer number (14456680).

Almost surely, 2^82609580 is an apocalyptic number.

It is an amenable number.

82609580 is an abundant number, since it is smaller than the sum of its proper divisors (90870580).

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

82609580 is a wasteful number, since it uses less digits than its factorization.

82609580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130488 (or 4130486 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 82609580 is about 9088.9812410413. The cubic root of 82609580 is about 435.5220402717.

The spelling of 82609580 in words is "eighty-two million, six hundred nine thousand, five hundred eighty".