23868389 has 4 divisors (see below), whose sum is σ = 25124640. Its totient is φ = 22612140.

The previous prime is 23868337. The next prime is 23868401. The reversal of 23868389 is 98386832.

It is a happy number.

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 not a de Polignac number, because 23868389 - 2¹² = 23864293 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 (23861389) 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, 628097 + ... + 628134.

It is an arithmetic number, because the mean of its divisors is an integer number (6281160).

Almost surely, 2^23868389 is an apocalyptic number.

It is an amenable number.

23868389 is a deficient number, since it is larger than the sum of its proper divisors (1256251).

23868389 is a wasteful number, since it uses less digits than its factorization.

23868389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256250.

The product of its digits is 497664, while the sum is 47.

The square root of 23868389 is about 4885.5285282147. The cubic root of 23868389 is about 287.9216808964.

The spelling of 23868389 in words is "twenty-three million, eight hundred sixty-eight thousand, three hundred eighty-nine".