2639291 has 2 divisors, whose sum is σ = 2639292. Its totient is φ = 2639290.

The previous prime is 2639251. The next prime is 2639303. The reversal of 2639291 is 1929362.

2639291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2639291 - 2¹⁰ = 2638267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2639201) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319645 + 1319646.

It is an arithmetic number, because the mean of its divisors is an integer number (1319646).

2^2639291 is an apocalyptic number.

2639291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2639291 is an equidigital number, since it uses as much as digits as its factorization.

2639291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 2639291 is about 1624.5894866088. The cubic root of 2639291 is about 138.1960910428.

The spelling of 2639291 in words is "two million, six hundred thirty-nine thousand, two hundred ninety-one".