80591 has 8 divisors (see below), whose sum is σ = 95520. Its totient is φ = 66528.

The previous prime is 80567. The next prime is 80599. The reversal of 80591 is 19508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80591 - 2⁶ = 80527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80591.

It is not an unprimeable number, because it can be changed into a prime (80599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 401.

It is an arithmetic number, because the mean of its divisors is an integer number (11940).

2⁸⁰⁵⁹¹ is an apocalyptic number.

80591 is a deficient number, since it is larger than the sum of its proper divisors (14929).

80591 is a wasteful number, since it uses less digits than its factorization.

80591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 80591 is about 283.8855403151. The cubic root of 80591 is about 43.1945394904.

The spelling of 80591 in words is "eighty thousand, five hundred ninety-one".