31296943 has 2 divisors, whose sum is σ = 31296944. Its totient is φ = 31296942.

The previous prime is 31296919. The next prime is 31296959. The reversal of 31296943 is 34969213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31296943 - 2⁹ = 31296431 is a prime.

It is a super-2 number, since 2×31296943² = 1958997282290498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31296913) 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, 15648471 + 15648472.

It is an arithmetic number, because the mean of its divisors is an integer number (15648472).

Almost surely, 2^31296943 is an apocalyptic number.

31296943 is a deficient number, since it is larger than the sum of its proper divisors (1).

31296943 is an equidigital number, since it uses as much as digits as its factorization.

31296943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 31296943 is about 5594.3670776952. The cubic root of 31296943 is about 315.1379021628.

The spelling of 31296943 in words is "thirty-one million, two hundred ninety-six thousand, nine hundred forty-three".