22293317 has 2 divisors, whose sum is σ = 22293318. Its totient is φ = 22293316.

The previous prime is 22293301. The next prime is 22293319. The reversal of 22293317 is 71339222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22287841 + 5476 = 4721^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 22293317 - 2⁴ = 22293301 is a prime.

Together with 22293319, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22293317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22293319) 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, 11146658 + 11146659.

It is an arithmetic number, because the mean of its divisors is an integer number (11146659).

Almost surely, 2^22293317 is an apocalyptic number.

It is an amenable number.

22293317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22293317 is an equidigital number, since it uses as much as digits as its factorization.

22293317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 22293317 is about 4721.5799262535. The cubic root of 22293317 is about 281.4437208912.

It can be divided in two parts, 222 and 93317, that added together give a palindrome (93539).

The spelling of 22293317 in words is "twenty-two million, two hundred ninety-three thousand, three hundred seventeen".