22606849 has 2 divisors, whose sum is σ = 22606850. Its totient is φ = 22606848.

The previous prime is 22606847. The next prime is 22606873. The reversal of 22606849 is 94860622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 186624 = 4735^2 + 432^2 .

It is a cyclic number.

It is not a de Polignac number, because 22606849 - 2¹ = 22606847 is a prime.

It is a super-2 number, since 2×22606849² = 1022139243417602, which contains 22 as substring.

Together with 22606847, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22606841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11303424 + 11303425.

It is an arithmetic number, because the mean of its divisors is an integer number (11303425).

Almost surely, 2^22606849 is an apocalyptic number.

It is an amenable number.

22606849 is a deficient number, since it is larger than the sum of its proper divisors (1).

22606849 is an equidigital number, since it uses as much as digits as its factorization.

22606849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 22606849 is about 4754.6660240231. Note that the first 3 decimals coincide. The cubic root of 22606849 is about 282.7569865033.

The spelling of 22606849 in words is "twenty-two million, six hundred six thousand, eight hundred forty-nine".