23199805 has 8 divisors (see below), whose sum is σ = 27965952. Its totient is φ = 18475728.

The previous prime is 23199773. The next prime is 23199829. The reversal of 23199805 is 50899132.

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 23199805 - 2⁵ = 23199773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9289 + ... + 11518.

It is an arithmetic number, because the mean of its divisors is an integer number (3495744).

Almost surely, 2^23199805 is an apocalyptic number.

It is an amenable number.

23199805 is a deficient number, since it is larger than the sum of its proper divisors (4766147).

23199805 is a wasteful number, since it uses less digits than its factorization.

23199805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21035.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 23199805 is about 4816.6175891387. The cubic root of 23199805 is about 285.2078303503.

The spelling of 23199805 in words is "twenty-three million, one hundred ninety-nine thousand, eight hundred five".