23989899 has 8 divisors (see below), whose sum is σ = 32231232. Its totient is φ = 15870920.

The previous prime is 23989883. The next prime is 23989957. The reversal of 23989899 is 99898932.

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

It is a cyclic number.

It is not a de Polignac number, because 23989899 - 2⁴ = 23989883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23989859) 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, 30129 + ... + 30914.

It is an arithmetic number, because the mean of its divisors is an integer number (4028904).

Almost surely, 2^23989899 is an apocalyptic number.

23989899 is a deficient number, since it is larger than the sum of its proper divisors (8241333).

23989899 is a wasteful number, since it uses less digits than its factorization.

23989899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61177.

The product of its digits is 2519424, while the sum is 57.

The square root of 23989899 is about 4897.9484480750. The cubic root of 23989899 is about 288.4094412638.

The spelling of 23989899 in words is "twenty-three million, nine hundred eighty-nine thousand, eight hundred ninety-nine".