23923219 has 2 divisors, whose sum is σ = 23923220. Its totient is φ = 23923218.

The previous prime is 23923181. The next prime is 23923253. The reversal of 23923219 is 91232932.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23923219 - 2⁹ = 23922707 is a prime.

It is a super-2 number, since 2×23923219² = 1144640814643922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23923279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11961609 + 11961610.

It is an arithmetic number, because the mean of its divisors is an integer number (11961610).

Almost surely, 2^23923219 is an apocalyptic number.

23923219 is a deficient number, since it is larger than the sum of its proper divisors (1).

23923219 is an equidigital number, since it uses as much as digits as its factorization.

23923219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 23923219 is about 4891.1367799316. The cubic root of 23923219 is about 288.1419816581.

It can be divided in two parts, 23923 and 219, that added together give a palindrome (24142).

The spelling of 23923219 in words is "twenty-three million, nine hundred twenty-three thousand, two hundred nineteen".