2663189 has 2 divisors, whose sum is σ = 2663190. Its totient is φ = 2663188.

The previous prime is 2663159. The next prime is 2663209. The reversal of 2663189 is 9813662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 819025 = 1358^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663189 - 2¹² = 2659093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331594 + 1331595.

It is an arithmetic number, because the mean of its divisors is an integer number (1331595).

2^2663189 is an apocalyptic number.

It is an amenable number.

2663189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663189 is an equidigital number, since it uses as much as digits as its factorization.

2663189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 2663189 is about 1631.9280008628. The cubic root of 2663189 is about 138.6119466612.

The spelling of 2663189 in words is "two million, six hundred sixty-three thousand, one hundred eighty-nine".