22648897 has 2 divisors, whose sum is σ = 22648898. Its totient is φ = 22648896.

The previous prime is 22648891. The next prime is 22648937. The reversal of 22648897 is 79884622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21013056 + 1635841 = 4584^2 + 1279^2 .

It is a cyclic number.

It is not a de Polignac number, because 22648897 - 2³ = 22648889 is a prime.

It is not a weakly prime, because it can be changed into another prime (22648891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11324448 + 11324449.

It is an arithmetic number, because the mean of its divisors is an integer number (11324449).

Almost surely, 2^22648897 is an apocalyptic number.

It is an amenable number.

22648897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22648897 is an equidigital number, since it uses as much as digits as its factorization.

22648897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 22648897 is about 4759.0857315245. The cubic root of 22648897 is about 282.9321841775.

The spelling of 22648897 in words is "twenty-two million, six hundred forty-eight thousand, eight hundred ninety-seven".