2990609 has 2 divisors, whose sum is σ = 2990610. Its totient is φ = 2990608.

The previous prime is 2990587. The next prime is 2990629. The reversal of 2990609 is 9060992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 494209 = 1580^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2990609 - 2¹² = 2986513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2990629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495304 + 1495305.

It is an arithmetic number, because the mean of its divisors is an integer number (1495305).

2^2990609 is an apocalyptic number.

It is an amenable number.

2990609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2990609 is an equidigital number, since it uses as much as digits as its factorization.

2990609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2990609 is about 1729.3377345099. The cubic root of 2990609 is about 144.0743089982.

The spelling of 2990609 in words is "two million, nine hundred ninety thousand, six hundred nine".