23666889 has 8 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 15718736.

The previous prime is 23666849. The next prime is 23666891. The reversal of 23666889 is 98866632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23666889 - 2¹⁹ = 23142601 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23666849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13857 + ... + 15470.

It is an arithmetic number, because the mean of its divisors is an integer number (3959280).

Almost surely, 2^23666889 is an apocalyptic number.

It is an amenable number.

23666889 is a deficient number, since it is larger than the sum of its proper divisors (8007351).

23666889 is a wasteful number, since it uses less digits than its factorization.

23666889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29599.

The product of its digits is 746496, while the sum is 48.

The square root of 23666889 is about 4864.8626907653. The cubic root of 23666889 is about 287.1091662233.

The spelling of 23666889 in words is "twenty-three million, six hundred sixty-six thousand, eight hundred eighty-nine".