23666849 has 2 divisors, whose sum is σ = 23666850. Its totient is φ = 23666848.

The previous prime is 23666821. The next prime is 23666891. The reversal of 23666849 is 94866632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19891600 + 3775249 = 4460^2 + 1943^2 .

It is a cyclic number.

It is not a de Polignac number, because 23666849 - 2⁸ = 23666593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23666449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11833424 + 11833425.

It is an arithmetic number, because the mean of its divisors is an integer number (11833425).

Almost surely, 2^23666849 is an apocalyptic number.

It is an amenable number.

23666849 is a deficient number, since it is larger than the sum of its proper divisors (1).

23666849 is an equidigital number, since it uses as much as digits as its factorization.

23666849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 23666849 is about 4864.8585796506. The cubic root of 23666849 is about 287.1090044731.

The spelling of 23666849 in words is "twenty-three million, six hundred sixty-six thousand, eight hundred forty-nine".