23669449 has 2 divisors, whose sum is σ = 23669450. Its totient is φ = 23669448.

The previous prime is 23669417. The next prime is 23669453. The reversal of 23669449 is 94496632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22629049 + 1040400 = 4757^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 23669449 - 2⁵ = 23669417 is a prime.

It is not a weakly prime, because it can be changed into another prime (23669489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11834724 + 11834725.

It is an arithmetic number, because the mean of its divisors is an integer number (11834725).

Almost surely, 2^23669449 is an apocalyptic number.

It is an amenable number.

23669449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23669449 is an equidigital number, since it uses as much as digits as its factorization.

23669449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 23669449 is about 4865.1257948793. The cubic root of 23669449 is about 287.1195178579.

The spelling of 23669449 in words is "twenty-three million, six hundred sixty-nine thousand, four hundred forty-nine".