2630989 has 2 divisors, whose sum is σ = 2630990. Its totient is φ = 2630988.

The previous prime is 2630951. The next prime is 2631007. The reversal of 2630989 is 9890362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 280900 = 1533^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630989 - 2⁷ = 2630861 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 3⁵ + 0 + 9³ + 8⁷ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2630389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315494 + 1315495.

It is an arithmetic number, because the mean of its divisors is an integer number (1315495).

2^2630989 is an apocalyptic number.

It is an amenable number.

2630989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630989 is an equidigital number, since it uses as much as digits as its factorization.

2630989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2630989 is about 1622.0323671247. The cubic root of 2630989 is about 138.0510383224.

The spelling of 2630989 in words is "two million, six hundred thirty thousand, nine hundred eighty-nine".