23803989 has 8 divisors (see below), whose sum is σ = 34624032. Its totient is φ = 14426640.

The previous prime is 23803981. The next prime is 23804009. The reversal of 23803989 is 98930832.

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

It is not a de Polignac number, because 23803989 - 2³ = 23803981 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23803989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23803981) 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, 360634 + ... + 360699.

It is an arithmetic number, because the mean of its divisors is an integer number (4328004).

Almost surely, 2^23803989 is an apocalyptic number.

It is an amenable number.

23803989 is a deficient number, since it is larger than the sum of its proper divisors (10820043).

23803989 is a wasteful number, since it uses less digits than its factorization.

23803989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721347.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 23803989 is about 4878.9331825718. The cubic root of 23803989 is about 287.6624976775.

The spelling of 23803989 in words is "twenty-three million, eight hundred three thousand, nine hundred eighty-nine".