31079 has 2 divisors, whose sum is σ = 31080. Its totient is φ = 31078.

The previous prime is 31069. The next prime is 31081. The reversal of 31079 is 97013.

31079 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31079 - 2⁴ = 31063 is a prime.

Together with 31081, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15539 + 15540.

It is an arithmetic number, because the mean of its divisors is an integer number (15540).

2³¹⁰⁷⁹ is an apocalyptic number.

31079 is a deficient number, since it is larger than the sum of its proper divisors (1).

31079 is an equidigital number, since it uses as much as digits as its factorization.

31079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 31079 is about 176.2923707935. The cubic root of 31079 is about 31.4404687346.

The spelling of 31079 in words is "thirty-one thousand, seventy-nine".