23426549 has 2 divisors, whose sum is σ = 23426550. Its totient is φ = 23426548.

The previous prime is 23426537. The next prime is 23426569. The reversal of 23426549 is 94562432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 145924 = 4825^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 23426549 - 2²⁴ = 6649333 is a prime.

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 (23426569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11713274 + 11713275.

It is an arithmetic number, because the mean of its divisors is an integer number (11713275).

Almost surely, 2^23426549 is an apocalyptic number.

It is an amenable number.

23426549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23426549 is an equidigital number, since it uses as much as digits as its factorization.

23426549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 23426549 is about 4840.0980361972. The cubic root of 23426549 is about 286.1339820833.

The spelling of 23426549 in words is "twenty-three million, four hundred twenty-six thousand, five hundred forty-nine".