31374793 has 2 divisors, whose sum is σ = 31374794. Its totient is φ = 31374792.

The previous prime is 31374787. The next prime is 31374823. The reversal of 31374793 is 39747313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31270464 + 104329 = 5592^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 31374793 - 2⁹ = 31374281 is a prime.

It is not a weakly prime, because it can be changed into another prime (31374293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15687396 + 15687397.

It is an arithmetic number, because the mean of its divisors is an integer number (15687397).

Almost surely, 2^31374793 is an apocalyptic number.

It is an amenable number.

31374793 is a deficient number, since it is larger than the sum of its proper divisors (1).

31374793 is an equidigital number, since it uses as much as digits as its factorization.

31374793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 37.

The square root of 31374793 is about 5601.3206478473. The cubic root of 31374793 is about 315.3989838037.

The spelling of 31374793 in words is "thirty-one million, three hundred seventy-four thousand, seven hundred ninety-three".