23408889 has 8 divisors (see below), whose sum is σ = 35670720. Its totient is φ = 13376496.

The previous prime is 23408873. The next prime is 23408897. The reversal of 23408889 is 98880432.

It is a happy number.

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

It is not a de Polignac number, because 23408889 - 2⁴ = 23408873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23408889.

It is not an unprimeable number, because it can be changed into a prime (23408809) 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 7 ways as a sum of consecutive naturals, for example, 557334 + ... + 557375.

It is an arithmetic number, because the mean of its divisors is an integer number (4458840).

Almost surely, 2^23408889 is an apocalyptic number.

It is an amenable number.

23408889 is a deficient number, since it is larger than the sum of its proper divisors (12261831).

23408889 is a wasteful number, since it uses less digits than its factorization.

23408889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114719.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 23408889 is about 4838.2733490368. The cubic root of 23408889 is about 286.0620637310.

The spelling of 23408889 in words is "twenty-three million, four hundred eight thousand, eight hundred eighty-nine".