31379 has 2 divisors, whose sum is σ = 31380. Its totient is φ = 31378.

The previous prime is 31357. The next prime is 31387. The reversal of 31379 is 97313.

It is a strong prime.

31379 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 31379 - 2⁸ = 31123 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (31319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15689 + 15690.

It is an arithmetic number, because the mean of its divisors is an integer number (15690).

2³¹³⁷⁹ is an apocalyptic number.

31379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31379 is an equidigital number, since it uses as much as digits as its factorization.

31379 is an odious number, because the sum of its binary digits is odd.

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

The square root of 31379 is about 177.1411866281. The cubic root of 31379 is about 31.5413080303.

The spelling of 31379 in words is "thirty-one thousand, three hundred seventy-nine".