79591 has 8 divisors (see below), whose sum is σ = 86400. Its totient is φ = 73080.

The previous prime is 79589. The next prime is 79601. The reversal of 79591 is 19597.

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

It is a cyclic number.

It is not a de Polignac number, because 79591 - 2¹ = 79589 is a prime.

It is a d-powerful number, because it can be written as 7 + 9³ + 5⁷ + 9³ + 1 .

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79531) 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, 1086 + ... + 1156.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2⁷⁹⁵⁹¹ is an apocalyptic number.

79591 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79591 is a deficient number, since it is larger than the sum of its proper divisors (6809).

79591 is a wasteful number, since it uses less digits than its factorization.

79591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its digits is 2835, while the sum is 31.

The square root of 79591 is about 282.1187693153. The cubic root of 79591 is about 43.0151379908.

The spelling of 79591 in words is "seventy-nine thousand, five hundred ninety-one".