23673989 has 4 divisors (see below), whose sum is σ = 23786400. Its totient is φ = 23561580.

The previous prime is 23673983. The next prime is 23673997. The reversal of 23673989 is 98937632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23673989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23673983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55889 + ... + 56310.

It is an arithmetic number, because the mean of its divisors is an integer number (5946600).

Almost surely, 2^23673989 is an apocalyptic number.

It is an amenable number.

23673989 is a deficient number, since it is larger than the sum of its proper divisors (112411).

23673989 is a wasteful number, since it uses less digits than its factorization.

23673989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112410.

The product of its digits is 489888, while the sum is 47.

The square root of 23673989 is about 4865.5923585931. The cubic root of 23673989 is about 287.1378739996.

The spelling of 23673989 in words is "twenty-three million, six hundred seventy-three thousand, nine hundred eighty-nine".