23299399 has 4 divisors (see below), whose sum is σ = 23561280. Its totient is φ = 23037520.

The previous prime is 23299379. The next prime is 23299411. The reversal of 23299399 is 99399232.

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-23299399 is a prime.

It is a super-2 number, since 2×23299399² = 1085723987522402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23299349) 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, 130807 + ... + 130984.

It is an arithmetic number, because the mean of its divisors is an integer number (5890320).

Almost surely, 2^23299399 is an apocalyptic number.

23299399 is a deficient number, since it is larger than the sum of its proper divisors (261881).

23299399 is an equidigital number, since it uses as much as digits as its factorization.

23299399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261880.

The product of its digits is 236196, while the sum is 46.

The square root of 23299399 is about 4826.9451001643. The cubic root of 23299399 is about 285.6153688175.

The spelling of 23299399 in words is "twenty-three million, two hundred ninety-nine thousand, three hundred ninety-nine".