23668249 has 4 divisors (see below), whose sum is σ = 25819920. Its totient is φ = 21516580.

The previous prime is 23668241. The next prime is 23668261. The reversal of 23668249 is 94286632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23668249 - 2³ = 23668241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23668241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075819 + ... + 1075840.

It is an arithmetic number, because the mean of its divisors is an integer number (6454980).

Almost surely, 2^23668249 is an apocalyptic number.

It is an amenable number.

23668249 is a deficient number, since it is larger than the sum of its proper divisors (2151671).

23668249 is a wasteful number, since it uses less digits than its factorization.

23668249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151670.

The product of its digits is 124416, while the sum is 40.

The square root of 23668249 is about 4865.0024665975. The cubic root of 23668249 is about 287.1146656221.

The spelling of 23668249 in words is "twenty-three million, six hundred sixty-eight thousand, two hundred forty-nine".