22396823 has 2 divisors, whose sum is σ = 22396824. Its totient is φ = 22396822.

The previous prime is 22396811. The next prime is 22396841. The reversal of 22396823 is 32869322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22396823 - 2⁸ = 22396567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22396883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11198411 + 11198412.

It is an arithmetic number, because the mean of its divisors is an integer number (11198412).

Almost surely, 2^22396823 is an apocalyptic number.

22396823 is a deficient number, since it is larger than the sum of its proper divisors (1).

22396823 is an equidigital number, since it uses as much as digits as its factorization.

22396823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 22396823 is about 4732.5281826947. The cubic root of 22396823 is about 281.8786217072.

The spelling of 22396823 in words is "twenty-two million, three hundred ninety-six thousand, eight hundred twenty-three".