3021989 has 2 divisors, whose sum is σ = 3021990. Its totient is φ = 3021988.

The previous prime is 3021983. The next prime is 3022027. The reversal of 3021989 is 9891203.

3021989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800964 + 1221025 = 1342^2 + 1105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3021989 is a prime.

It is a super-2 number, since 2×3021989² = 18264835032242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3021983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510994 + 1510995.

It is an arithmetic number, because the mean of its divisors is an integer number (1510995).

Almost surely, 2^3021989 is an apocalyptic number.

It is an amenable number.

3021989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021989 is an equidigital number, since it uses as much as digits as its factorization.

3021989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 3021989 is about 1738.3868959469. The cubic root of 3021989 is about 144.5764732124.

The spelling of 3021989 in words is "three million, twenty-one thousand, nine hundred eighty-nine".