22298993 has 2 divisors, whose sum is σ = 22298994. Its totient is φ = 22298992.

The previous prime is 22298987. The next prime is 22299001. The reversal of 22298993 is 39989222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18809569 + 3489424 = 4337^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 22298993 - 2⁶ = 22298929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22298923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11149496 + 11149497.

It is an arithmetic number, because the mean of its divisors is an integer number (11149497).

Almost surely, 2^22298993 is an apocalyptic number.

It is an amenable number.

22298993 is a deficient number, since it is larger than the sum of its proper divisors (1).

22298993 is an equidigital number, since it uses as much as digits as its factorization.

22298993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 22298993 is about 4722.1809579896. The cubic root of 22298993 is about 281.4676045660.

The spelling of 22298993 in words is "twenty-two million, two hundred ninety-eight thousand, nine hundred ninety-three".