2423998639 has 2 divisors, whose sum is σ = 2423998640. Its totient is φ = 2423998638.

The previous prime is 2423998637. The next prime is 2423998691. The reversal of 2423998639 is 9368993242.

2423998639 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 2423998639 - 2¹ = 2423998637 is a prime.

Together with 2423998637, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2423998639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2423998631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211999319 + 1211999320.

It is an arithmetic number, because the mean of its divisors is an integer number (1211999320).

Almost surely, 2^2423998639 is an apocalyptic number.

2423998639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2423998639 is an equidigital number, since it uses as much as digits as its factorization.

2423998639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 55.

The square root of 2423998639 is about 49234.1206786513. The cubic root of 2423998639 is about 1343.3137408999.

The spelling of 2423998639 in words is "two billion, four hundred twenty-three million, nine hundred ninety-eight thousand, six hundred thirty-nine".