2639071 has 2 divisors, whose sum is σ = 2639072. Its totient is φ = 2639070.

The previous prime is 2639069. The next prime is 2639083. The reversal of 2639071 is 1709362.

2639071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2639071 - 2¹ = 2639069 is a prime.

Together with 2639069, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2639041) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319535 + 1319536.

It is an arithmetic number, because the mean of its divisors is an integer number (1319536).

2^2639071 is an apocalyptic number.

2639071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2639071 is an equidigital number, since it uses as much as digits as its factorization.

2639071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2639071 is about 1624.5217757851. The cubic root of 2639071 is about 138.1922511246.

The spelling of 2639071 in words is "two million, six hundred thirty-nine thousand, seventy-one".