23458989 has 8 divisors (see below), whose sum is σ = 31416160. Its totient is φ = 15570576.

The previous prime is 23458979. The next prime is 23458993. The reversal of 23458989 is 98985432.

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

It is not a de Polignac number, because 23458989 - 2¹⁶ = 23393453 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23458949) 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, 16387 + ... + 17760.

It is an arithmetic number, because the mean of its divisors is an integer number (3927020).

Almost surely, 2^23458989 is an apocalyptic number.

It is an amenable number.

23458989 is a deficient number, since it is larger than the sum of its proper divisors (7957171).

23458989 is a wasteful number, since it uses less digits than its factorization.

23458989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34379.

The product of its digits is 622080, while the sum is 48.

The square root of 23458989 is about 4843.4480486529. The cubic root of 23458989 is about 286.2659961949.

The spelling of 23458989 in words is "twenty-three million, four hundred fifty-eight thousand, nine hundred eighty-nine".