31790969 has 16 divisors (see below), whose sum is σ = 38619648. Its totient is φ = 25546752.

The previous prime is 31790953. The next prime is 31790977. The reversal of 31790969 is 96909713.

It is a happy number.

It is not a de Polignac number, because 31790969 - 2⁴ = 31790953 is a prime.

It is a super-2 number, since 2×31790969² = 2021331419917922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31790929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54809 + ... + 55385.

It is an arithmetic number, because the mean of its divisors is an integer number (2413728).

Almost surely, 2^31790969 is an apocalyptic number.

It is an amenable number.

31790969 is a deficient number, since it is larger than the sum of its proper divisors (6828679).

31790969 is a wasteful number, since it uses less digits than its factorization.

31790969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 31790969 is about 5638.3480736826. The cubic root of 31790969 is about 316.7874163082.

The spelling of 31790969 in words is "thirty-one million, seven hundred ninety thousand, nine hundred sixty-nine".