23421269 has 2 divisors, whose sum is σ = 23421270. Its totient is φ = 23421268.

The previous prime is 23421253. The next prime is 23421287. The reversal of 23421269 is 96212432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 10640644 = 3575^2 + 3262^2 .

It is a cyclic number.

It is not a de Polignac number, because 23421269 - 2⁴ = 23421253 is a prime.

It is a super-2 number, since 2×23421269² = 1097111683140722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710634 + 11710635.

It is an arithmetic number, because the mean of its divisors is an integer number (11710635).

Almost surely, 2^23421269 is an apocalyptic number.

It is an amenable number.

23421269 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421269 is an equidigital number, since it uses as much as digits as its factorization.

23421269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 23421269 is about 4839.5525619627. The cubic root of 23421269 is about 286.1124836694.

The spelling of 23421269 in words is "twenty-three million, four hundred twenty-one thousand, two hundred sixty-nine".