82008591 has 16 divisors (see below), whose sum is σ = 125299200. Its totient is φ = 46736928.

The previous prime is 82008587. The next prime is 82008601. The reversal of 82008591 is 19580028.

It is a happy number.

It is not a de Polignac number, because 82008591 - 2² = 82008587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82008551) 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, 3150 + ... + 13188.

It is an arithmetic number, because the mean of its divisors is an integer number (7831200).

Almost surely, 2^82008591 is an apocalyptic number.

82008591 is a deficient number, since it is larger than the sum of its proper divisors (43290609).

82008591 is a wasteful number, since it uses less digits than its factorization.

82008591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 82008591 is about 9055.8594843339. The cubic root of 82008591 is about 434.4633201773.

The spelling of 82008591 in words is "eighty-two million, eight thousand, five hundred ninety-one".