3220990931 has 2 divisors, whose sum is σ = 3220990932. Its totient is φ = 3220990930.

The previous prime is 3220990921. The next prime is 3220990943. The reversal of 3220990931 is 1390990223.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3220990931 is a prime.

It is a super-2 number, since 2×3220990931² = 20749565155168493522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3220990921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610495465 + 1610495466.

It is an arithmetic number, because the mean of its divisors is an integer number (1610495466).

Almost surely, 2^3220990931 is an apocalyptic number.

3220990931 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220990931 is an equidigital number, since it uses as much as digits as its factorization.

3220990931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 3220990931 is about 56753.7745969376. The cubic root of 3220990931 is about 1476.8277151001.

The spelling of 3220990931 in words is "three billion, two hundred twenty million, nine hundred ninety thousand, nine hundred thirty-one".