3329981 has 2 divisors, whose sum is σ = 3329982. Its totient is φ = 3329980.

The previous prime is 3329939. The next prime is 3329993. The reversal of 3329981 is 1899233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 737881 = 1610^2 + 859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3329981 is a prime.

It is a super-2 number, since 2×3329981² = 22177546920722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3329281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664990 + 1664991.

It is an arithmetic number, because the mean of its divisors is an integer number (1664991).

Almost surely, 2^3329981 is an apocalyptic number.

It is an amenable number.

3329981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3329981 is an equidigital number, since it uses as much as digits as its factorization.

3329981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 3329981 is about 1824.8235531141. The cubic root of 3329981 is about 149.3300642133.

The spelling of 3329981 in words is "three million, three hundred twenty-nine thousand, nine hundred eighty-one".