22198769 has 2 divisors, whose sum is σ = 22198770. Its totient is φ = 22198768.

The previous prime is 22198747. The next prime is 22198777. The reversal of 22198769 is 96789122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 1993744 = 4495^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 22198769 - 2⁸ = 22198513 is a prime.

It is a super-2 number, since 2×22198769² = 985570690230722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22198739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099384 + 11099385.

It is an arithmetic number, because the mean of its divisors is an integer number (11099385).

Almost surely, 2^22198769 is an apocalyptic number.

It is an amenable number.

22198769 is a deficient number, since it is larger than the sum of its proper divisors (1).

22198769 is an equidigital number, since it uses as much as digits as its factorization.

22198769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 22198769 is about 4711.5569613452. The cubic root of 22198769 is about 281.0452808832.

The spelling of 22198769 in words is "twenty-two million, one hundred ninety-eight thousand, seven hundred sixty-nine".