31090079 has 2 divisors, whose sum is σ = 31090080. Its totient is φ = 31090078.

The previous prime is 31090067. The next prime is 31090091. The reversal of 31090079 is 97009013.

It is a balanced prime because it is at equal distance from previous prime (31090067) and next prime (31090091).

It is a cyclic number.

It is not a de Polignac number, because 31090079 - 2⁴ = 31090063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31090879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15545039 + 15545040.

It is an arithmetic number, because the mean of its divisors is an integer number (15545040).

Almost surely, 2^31090079 is an apocalyptic number.

31090079 is a deficient number, since it is larger than the sum of its proper divisors (1).

31090079 is an equidigital number, since it uses as much as digits as its factorization.

31090079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 31090079 is about 5575.8478279092. The cubic root of 31090079 is about 314.4420424270.

The spelling of 31090079 in words is "thirty-one million, ninety thousand, seventy-nine".