22399163 has 2 divisors, whose sum is σ = 22399164. Its totient is φ = 22399162.

The previous prime is 22399159. The next prime is 22399187. The reversal of 22399163 is 36199322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22399163 - 2² = 22399159 is a prime.

It is not a weakly prime, because it can be changed into another prime (22399123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11199581 + 11199582.

It is an arithmetic number, because the mean of its divisors is an integer number (11199582).

Almost surely, 2^22399163 is an apocalyptic number.

22399163 is a deficient number, since it is larger than the sum of its proper divisors (1).

22399163 is an equidigital number, since it uses as much as digits as its factorization.

22399163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 22399163 is about 4732.7754013898. The cubic root of 22399163 is about 281.8884381740. Note that the first 3 decimals are identical.

The spelling of 22399163 in words is "twenty-two million, three hundred ninety-nine thousand, one hundred sixty-three".