22396399 has 2 divisors, whose sum is σ = 22396400. Its totient is φ = 22396398.

The previous prime is 22396379. The next prime is 22396441. The reversal of 22396399 is 99369322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22396399 - 2⁷ = 22396271 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22396379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11198199 + 11198200.

It is an arithmetic number, because the mean of its divisors is an integer number (11198200).

Almost surely, 2^22396399 is an apocalyptic number.

22396399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22396399 is an equidigital number, since it uses as much as digits as its factorization.

22396399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 43.

The square root of 22396399 is about 4732.4833861304. The cubic root of 22396399 is about 281.8768429238.

The spelling of 22396399 in words is "twenty-two million, three hundred ninety-six thousand, three hundred ninety-nine".