23919089 has 4 divisors (see below), whose sum is σ = 23932656. Its totient is φ = 23905524.

The previous prime is 23919083. The next prime is 23919097. The reversal of 23919089 is 98091932.

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-23919089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23919083) 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, 3659 + ... + 7824.

It is an arithmetic number, because the mean of its divisors is an integer number (5983164).

Almost surely, 2^23919089 is an apocalyptic number.

It is an amenable number.

23919089 is a deficient number, since it is larger than the sum of its proper divisors (13567).

23919089 is a wasteful number, since it uses less digits than its factorization.

23919089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 23919089 is about 4890.7145694673. The cubic root of 23919089 is about 288.1253995129.

The spelling of 23919089 in words is "twenty-three million, nine hundred nineteen thousand, eighty-nine".