23649841 has 2 divisors, whose sum is σ = 23649842. Its totient is φ = 23649840.

The previous prime is 23649827. The next prime is 23649853. The reversal of 23649841 is 14894632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 4857616 = 4335^2 + 2204^2 .

It is a cyclic number.

It is not a de Polignac number, because 23649841 - 2⁵ = 23649809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23649841.

It is not a weakly prime, because it can be changed into another prime (23646841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11824920 + 11824921.

It is an arithmetic number, because the mean of its divisors is an integer number (11824921).

Almost surely, 2^23649841 is an apocalyptic number.

It is an amenable number.

23649841 is a deficient number, since it is larger than the sum of its proper divisors (1).

23649841 is an equidigital number, since it uses as much as digits as its factorization.

23649841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 23649841 is about 4863.1102187797. The cubic root of 23649841 is about 287.0402117613.

The spelling of 23649841 in words is "twenty-three million, six hundred forty-nine thousand, eight hundred forty-one".