23913899 has 4 divisors (see below), whose sum is σ = 24057264. Its totient is φ = 23770536.

The previous prime is 23913889. The next prime is 23913937. The reversal of 23913899 is 99831932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23913899 is a prime.

It is a super-3 number, since 3×23913899³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23913809) 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, 71432 + ... + 71765.

It is an arithmetic number, because the mean of its divisors is an integer number (6014316).

Almost surely, 2^23913899 is an apocalyptic number.

23913899 is a deficient number, since it is larger than the sum of its proper divisors (143365).

23913899 is a wasteful number, since it uses less digits than its factorization.

23913899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143364.

The product of its digits is 104976, while the sum is 44.

The square root of 23913899 is about 4890.1839433706. The cubic root of 23913899 is about 288.1045587109.

The spelling of 23913899 in words is "twenty-three million, nine hundred thirteen thousand, eight hundred ninety-nine".