31364693 has 2 divisors, whose sum is σ = 31364694. Its totient is φ = 31364692.

The previous prime is 31364657. The next prime is 31364701. The reversal of 31364693 is 39646313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27112849 + 4251844 = 5207^2 + 2062^2 .

It is a cyclic number.

It is not a de Polignac number, because 31364693 - 2⁶ = 31364629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31364603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15682346 + 15682347.

It is an arithmetic number, because the mean of its divisors is an integer number (15682347).

Almost surely, 2^31364693 is an apocalyptic number.

It is an amenable number.

31364693 is a deficient number, since it is larger than the sum of its proper divisors (1).

31364693 is an equidigital number, since it uses as much as digits as its factorization.

31364693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 35.

The square root of 31364693 is about 5600.4190021819. The cubic root of 31364693 is about 315.3651363387.

The spelling of 31364693 in words is "thirty-one million, three hundred sixty-four thousand, six hundred ninety-three".