2639439223 has 2 divisors, whose sum is σ = 2639439224. Its totient is φ = 2639439222.

The previous prime is 2639439211. The next prime is 2639439311. The reversal of 2639439223 is 3229349362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2639439223 - 2²⁹ = 2102568311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2639439223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2639439623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319719611 + 1319719612.

It is an arithmetic number, because the mean of its divisors is an integer number (1319719612).

Almost surely, 2^2639439223 is an apocalyptic number.

2639439223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2639439223 is an equidigital number, since it uses as much as digits as its factorization.

2639439223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 43.

The square root of 2639439223 is about 51375.4729710589. The cubic root of 2639439223 is about 1381.9867803248.

The spelling of 2639439223 in words is "two billion, six hundred thirty-nine million, four hundred thirty-nine thousand, two hundred twenty-three".