23009899 has 4 divisors (see below), whose sum is σ = 25101720. Its totient is φ = 20918080.

The previous prime is 23009887. The next prime is 23009911. The reversal of 23009899 is 99890032.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (23009887) and next prime (23009911).

It is a cyclic number.

It is not a de Polignac number, because 23009899 - 2⁷ = 23009771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23009839) 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, 1045894 + ... + 1045915.

It is an arithmetic number, because the mean of its divisors is an integer number (6275430).

Almost surely, 2^23009899 is an apocalyptic number.

23009899 is a deficient number, since it is larger than the sum of its proper divisors (2091821).

23009899 is a wasteful number, since it uses less digits than its factorization.

23009899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091820.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 23009899 is about 4796.8634543835. The cubic root of 23009899 is about 284.4274913206.

The spelling of 23009899 in words is "twenty-three million, nine thousand, eight hundred ninety-nine".