23568669 has 6 divisors (see below), whose sum is σ = 34043646. Its totient is φ = 15712440.

The previous prime is 23568661. The next prime is 23568679. The reversal of 23568669 is 96686532.

It is a happy number.

23568669 is a `hidden beast` number, since 23 + 568 + 6 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21040569 + 2528100 = 4587^2 + 1590^2 .

It is not a de Polignac number, because 23568669 - 2³ = 23568661 is a prime.

It is a super-2 number, since 2×23568669² = 1110964316863122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23568661) 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 in 5 ways as a sum of consecutive naturals, for example, 1309362 + ... + 1309379.

It is an arithmetic number, because the mean of its divisors is an integer number (5673941).

Almost surely, 2^23568669 is an apocalyptic number.

It is an amenable number.

23568669 is a deficient number, since it is larger than the sum of its proper divisors (10474977).

23568669 is a wasteful number, since it uses less digits than its factorization.

23568669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618747 (or 2618744 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 23568669 is about 4854.7573574794. The cubic root of 23568669 is about 286.7114380827.

It can be divided in two parts, 2356 and 8669, that added together give a square (11025 = 105²).

The spelling of 23568669 in words is "twenty-three million, five hundred sixty-eight thousand, six hundred sixty-nine".