3020989 has 2 divisors, whose sum is σ = 3020990. Its totient is φ = 3020988.

The previous prime is 3020971. The next prime is 3020993. The reversal of 3020989 is 9890203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2948089 + 72900 = 1717^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020989 - 2⁵ = 3020957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3020989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510494 + 1510495.

It is an arithmetic number, because the mean of its divisors is an integer number (1510495).

Almost surely, 2^3020989 is an apocalyptic number.

It is an amenable number.

3020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020989 is an equidigital number, since it uses as much as digits as its factorization.

3020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 3020989 is about 1738.0992491800. The cubic root of 3020989 is about 144.5605242879.

The spelling of 3020989 in words is "three million, twenty thousand, nine hundred eighty-nine".