22845397 has 2 divisors, whose sum is σ = 22845398. Its totient is φ = 22845396.

The previous prime is 22845379. The next prime is 22845401. The reversal of 22845397 is 79354822.

Together with previous prime (22845379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19307236 + 3538161 = 4394^2 + 1881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22845397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22845307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11422698 + 11422699.

It is an arithmetic number, because the mean of its divisors is an integer number (11422699).

Almost surely, 2^22845397 is an apocalyptic number.

It is an amenable number.

22845397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22845397 is an equidigital number, since it uses as much as digits as its factorization.

22845397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 22845397 is about 4779.6858683390. The cubic root of 22845397 is about 283.7480614667.

The spelling of 22845397 in words is "twenty-two million, eight hundred forty-five thousand, three hundred ninety-seven".