23113639 has 2 divisors, whose sum is σ = 23113640. Its totient is φ = 23113638.

The previous prime is 23113603. The next prime is 23113669. The reversal of 23113639 is 93631132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23113639 - 2¹¹ = 23111591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23113669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556819 + 11556820.

It is an arithmetic number, because the mean of its divisors is an integer number (11556820).

Almost surely, 2^23113639 is an apocalyptic number.

23113639 is a deficient number, since it is larger than the sum of its proper divisors (1).

23113639 is an equidigital number, since it uses as much as digits as its factorization.

23113639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 28.

The square root of 23113639 is about 4807.6646097664. The cubic root of 23113639 is about 284.8542971253.

The spelling of 23113639 in words is "twenty-three million, one hundred thirteen thousand, six hundred thirty-nine".