23438629 has 2 divisors, whose sum is σ = 23438630. Its totient is φ = 23438628.

The previous prime is 23438627. The next prime is 23438669. The reversal of 23438629 is 92683432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13890529 + 9548100 = 3727^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 23438629 - 2¹ = 23438627 is a prime.

Together with 23438627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23438627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11719314 + 11719315.

It is an arithmetic number, because the mean of its divisors is an integer number (11719315).

Almost surely, 2^23438629 is an apocalyptic number.

It is an amenable number.

23438629 is a deficient number, since it is larger than the sum of its proper divisors (1).

23438629 is an equidigital number, since it uses as much as digits as its factorization.

23438629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 23438629 is about 4841.3457839737. The cubic root of 23438629 is about 286.1831557019.

The spelling of 23438629 in words is "twenty-three million, four hundred thirty-eight thousand, six hundred twenty-nine".