22319393 has 2 divisors, whose sum is σ = 22319394. Its totient is φ = 22319392.

The previous prime is 22319377. The next prime is 22319417. The reversal of 22319393 is 39391322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11343424 + 10975969 = 3368^2 + 3313^2 .

It is a cyclic number.

It is not a de Polignac number, because 22319393 - 2⁴ = 22319377 is a prime.

It is a super-3 number, since 3×22319393³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22319333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11159696 + 11159697.

It is an arithmetic number, because the mean of its divisors is an integer number (11159697).

Almost surely, 2^22319393 is an apocalyptic number.

It is an amenable number.

22319393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22319393 is an equidigital number, since it uses as much as digits as its factorization.

22319393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 32.

The square root of 22319393 is about 4724.3404830727. The cubic root of 22319393 is about 281.5534109675.

The spelling of 22319393 in words is "twenty-two million, three hundred nineteen thousand, three hundred ninety-three".