79331 has 6 divisors (see below), whose sum is σ = 92340. Its totient is φ = 67956.

The previous prime is 79319. The next prime is 79333. The reversal of 79331 is 13397.

It is not a de Polignac number, because 79331 - 2¹⁰ = 78307 is a prime.

It is a super-2 number, since 2×79331² = 12586815122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 79297 and 79306.

It is not an unprimeable number, because it can be changed into a prime (79333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761 + ... + 858.

It is an arithmetic number, because the mean of its divisors is an integer number (15390).

2⁷⁹³³¹ is an apocalyptic number.

79331 is a deficient number, since it is larger than the sum of its proper divisors (13009).

79331 is a wasteful number, since it uses less digits than its factorization.

79331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1626 counting only the distinct ones).

The product of its digits is 567, while the sum is 23.

The square root of 79331 is about 281.6575935422. The cubic root of 79331 is about 42.9682476966.

The spelling of 79331 in words is "seventy-nine thousand, three hundred thirty-one".