23997229 has 2 divisors, whose sum is σ = 23997230. Its totient is φ = 23997228.

The previous prime is 23997203. The next prime is 23997271. The reversal of 23997229 is 92279932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21114025 + 2883204 = 4595^2 + 1698^2 .

It is a cyclic number.

It is not a de Polignac number, because 23997229 - 2⁷ = 23997101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23997289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11998614 + 11998615.

It is an arithmetic number, because the mean of its divisors is an integer number (11998615).

Almost surely, 2^23997229 is an apocalyptic number.

It is an amenable number.

23997229 is a deficient number, since it is larger than the sum of its proper divisors (1).

23997229 is an equidigital number, since it uses as much as digits as its factorization.

23997229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 23997229 is about 4898.6966633994. The cubic root of 23997229 is about 288.4388123188.

The spelling of 23997229 in words is "twenty-three million, nine hundred ninety-seven thousand, two hundred twenty-nine".