23447609 has 2 divisors, whose sum is σ = 23447610. Its totient is φ = 23447608.

The previous prime is 23447597. The next prime is 23447617. The reversal of 23447609 is 90674432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17197609 + 6250000 = 4147^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 23447609 - 2⁸ = 23447353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23447639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11723804 + 11723805.

It is an arithmetic number, because the mean of its divisors is an integer number (11723805).

Almost surely, 2^23447609 is an apocalyptic number.

It is an amenable number.

23447609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23447609 is an equidigital number, since it uses as much as digits as its factorization.

23447609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 23447609 is about 4842.2731232346. The cubic root of 23447609 is about 286.2196993155.

The spelling of 23447609 in words is "twenty-three million, four hundred forty-seven thousand, six hundred nine".