23189899 has 8 divisors (see below), whose sum is σ = 24459840. Its totient is φ = 21924936.

The previous prime is 23189893. The next prime is 23189917. The reversal of 23189899 is 99898132.

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

It is not a de Polignac number, because 23189899 - 2⁵ = 23189867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23189893) 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, 12084 + ... + 13870.

It is an arithmetic number, because the mean of its divisors is an integer number (3057480).

Almost surely, 2^23189899 is an apocalyptic number.

23189899 is a deficient number, since it is larger than the sum of its proper divisors (1269941).

23189899 is a wasteful number, since it uses less digits than its factorization.

23189899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489.

The product of its digits is 279936, while the sum is 49.

The square root of 23189899 is about 4815.5891643702. The cubic root of 23189899 is about 285.1672312881.

The spelling of 23189899 in words is "twenty-three million, one hundred eighty-nine thousand, eight hundred ninety-nine".