22108393 has 2 divisors, whose sum is σ = 22108394. Its totient is φ = 22108392.

The previous prime is 22108391. The next prime is 22108399. The reversal of 22108393 is 39380122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15389929 + 6718464 = 3923^2 + 2592^2 .

It is a cyclic number.

It is not a de Polignac number, because 22108393 - 2¹ = 22108391 is a prime.

Together with 22108391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22108391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11054196 + 11054197.

It is an arithmetic number, because the mean of its divisors is an integer number (11054197).

Almost surely, 2^22108393 is an apocalyptic number.

It is an amenable number.

22108393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22108393 is an equidigital number, since it uses as much as digits as its factorization.

22108393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22108393 is about 4701.9562949904. The cubic root of 22108393 is about 280.6633633728.

The spelling of 22108393 in words is "twenty-two million, one hundred eight thousand, three hundred ninety-three".