23628889 has 8 divisors (see below), whose sum is σ = 24760512. Its totient is φ = 22506000.

The previous prime is 23628883. The next prime is 23628901. The reversal of 23628889 is 98882632.

It is a happy number.

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 23628889 - 2²¹ = 21531737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23628883) 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 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (3095064).

Almost surely, 2^23628889 is an apocalyptic number.

It is an amenable number.

23628889 is a deficient number, since it is larger than the sum of its proper divisors (1131623).

23628889 is a wasteful number, since it uses less digits than its factorization.

23628889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367.

The product of its digits is 331776, while the sum is 46.

The square root of 23628889 is about 4860.9555644955. The cubic root of 23628889 is about 286.9554212914.

The spelling of 23628889 in words is "twenty-three million, six hundred twenty-eight thousand, eight hundred eighty-nine".