23765669 has 2 divisors, whose sum is σ = 23765670. Its totient is φ = 23765668.

The previous prime is 23765657. The next prime is 23765671. The reversal of 23765669 is 96656732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14915044 + 8850625 = 3862^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 23765669 - 2⁴ = 23765653 is a prime.

It is a super-2 number, since 2×23765669² = 1129614046035122, which contains 22 as substring.

Together with 23765671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23765689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11882834 + 11882835.

It is an arithmetic number, because the mean of its divisors is an integer number (11882835).

Almost surely, 2^23765669 is an apocalyptic number.

It is an amenable number.

23765669 is a deficient number, since it is larger than the sum of its proper divisors (1).

23765669 is an equidigital number, since it uses as much as digits as its factorization.

23765669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 44.

The square root of 23765669 is about 4875.0045128184. The cubic root of 23765669 is about 287.5080537126.

Subtracting from 23765669 its sum of digits (44), we obtain a square (23765625 = 4875²).

The spelling of 23765669 in words is "twenty-three million, seven hundred sixty-five thousand, six hundred sixty-nine".