23223919 has 2 divisors, whose sum is σ = 23223920. Its totient is φ = 23223918.

The previous prime is 23223899. The next prime is 23223923. The reversal of 23223919 is 91932232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23223919 - 2⁷ = 23223791 is a prime.

It is a super-2 number, since 2×23223919² = 1078700827437122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611959 + 11611960.

It is an arithmetic number, because the mean of its divisors is an integer number (11611960).

Almost surely, 2^23223919 is an apocalyptic number.

23223919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223919 is an equidigital number, since it uses as much as digits as its factorization.

23223919 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 23223919 is about 4819.1201479108. The cubic root of 23223919 is about 285.3066116427.

It can be divided in two parts, 23223 and 919, that added together give a palindrome (24142).

The spelling of 23223919 in words is "twenty-three million, two hundred twenty-three thousand, nine hundred nineteen".