31896373 has 2 divisors, whose sum is σ = 31896374. Its totient is φ = 31896372.

The previous prime is 31896367. The next prime is 31896439. The reversal of 31896373 is 37369813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23590449 + 8305924 = 4857^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 31896373 - 2⁵ = 31896341 is a prime.

It is a super-2 number, since 2×31896373² = 2034757221110258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31896313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15948186 + 15948187.

It is an arithmetic number, because the mean of its divisors is an integer number (15948187).

Almost surely, 2^31896373 is an apocalyptic number.

It is an amenable number.

31896373 is a deficient number, since it is larger than the sum of its proper divisors (1).

31896373 is an equidigital number, since it uses as much as digits as its factorization.

31896373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 31896373 is about 5647.6874028225. The cubic root of 31896373 is about 317.1371364446.

The spelling of 31896373 in words is "thirty-one million, eight hundred ninety-six thousand, three hundred seventy-three".