23930889 has 4 divisors (see below), whose sum is σ = 31907856. Its totient is φ = 15953924.

The previous prime is 23930869. The next prime is 23930909. The reversal of 23930889 is 98803932.

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 an interprime number because it is at equal distance from previous prime (23930869) and next prime (23930909).

It is a cyclic number.

It is not a de Polignac number, because 23930889 - 2⁷ = 23930761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23930889.

It is not an unprimeable number, because it can be changed into a prime (23930869) 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, 3988479 + ... + 3988484.

It is an arithmetic number, because the mean of its divisors is an integer number (7976964).

Almost surely, 2^23930889 is an apocalyptic number.

It is an amenable number.

23930889 is a deficient number, since it is larger than the sum of its proper divisors (7976967).

23930889 is an equidigital number, since it uses as much as digits as its factorization.

23930889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976966.

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

The square root of 23930889 is about 4891.9207884020. The cubic root of 23930889 is about 288.1727720080.

The spelling of 23930889 in words is "twenty-three million, nine hundred thirty thousand, eight hundred eighty-nine".