22397317 has 4 divisors (see below), whose sum is σ = 22407840. Its totient is φ = 22386796.

The previous prime is 22397311. The next prime is 22397327. The reversal of 22397317 is 71379322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22397317 - 2⁷ = 22397189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22397311) 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 in 3 ways as a sum of consecutive naturals, for example, 817 + ... + 6742.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^22397317 is an apocalyptic number.

It is an amenable number.

22397317 is a deficient number, since it is larger than the sum of its proper divisors (10523).

22397317 is an equidigital number, since it uses as much as digits as its factorization.

22397317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522.

The product of its digits is 15876, while the sum is 34.

The square root of 22397317 is about 4732.5803743835. The cubic root of 22397317 is about 281.8806941293.

The spelling of 22397317 in words is "twenty-two million, three hundred ninety-seven thousand, three hundred seventeen".