23304805 has 4 divisors (see below), whose sum is σ = 27965772. Its totient is φ = 18643840.

The previous prime is 23304803. The next prime is 23304817. The reversal of 23304805 is 50840332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 11792356 = 3393^2 + 3434^2 .

It is not a de Polignac number, because 23304805 - 2¹ = 23304803 is a prime.

It is a super-2 number, since 2×23304805² = 1086227872176050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23304805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23304803) 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 3 ways as a sum of consecutive naturals, for example, 2330476 + ... + 2330485.

It is an arithmetic number, because the mean of its divisors is an integer number (6991443).

Almost surely, 2^23304805 is an apocalyptic number.

It is an amenable number.

23304805 is a deficient number, since it is larger than the sum of its proper divisors (4660967).

23304805 is an equidigital number, since it uses as much as digits as its factorization.

23304805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660966.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23304805 is about 4827.5050491947. The cubic root of 23304805 is about 285.6374569020.

The spelling of 23304805 in words is "twenty-three million, three hundred four thousand, eight hundred five".