23655629 has 2 divisors, whose sum is σ = 23655630. Its totient is φ = 23655628.

The previous prime is 23655613. The next prime is 23655631. The reversal of 23655629 is 92655632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 7414729 = 4030^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 23655629 - 2⁴ = 23655613 is a prime.

It is a Sophie Germain prime.

Together with 23655631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1486874 and since 23655629 and 1486874 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 23655592 and 23655601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23655659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827814 + 11827815.

It is an arithmetic number, because the mean of its divisors is an integer number (11827815).

Almost surely, 2^23655629 is an apocalyptic number.

It is an amenable number.

23655629 is a deficient number, since it is larger than the sum of its proper divisors (1).

23655629 is an equidigital number, since it uses as much as digits as its factorization.

23655629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 38.

The square root of 23655629 is about 4863.7052747879. The cubic root of 23655629 is about 287.0636263406.

The spelling of 23655629 in words is "twenty-three million, six hundred fifty-five thousand, six hundred twenty-nine".