22730017 has 2 divisors, whose sum is σ = 22730018. Its totient is φ = 22730016.

The previous prime is 22730009. The next prime is 22730027. The reversal of 22730017 is 71003722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18584721 + 4145296 = 4311^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 22730017 - 2³ = 22730009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22730017.

It is not a weakly prime, because it can be changed into another prime (22730027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11365008 + 11365009.

It is an arithmetic number, because the mean of its divisors is an integer number (11365009).

Almost surely, 2^22730017 is an apocalyptic number.

It is an amenable number.

22730017 is a deficient number, since it is larger than the sum of its proper divisors (1).

22730017 is an equidigital number, since it uses as much as digits as its factorization.

22730017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 22730017 is about 4767.6007592918. The cubic root of 22730017 is about 283.2695679649.

Adding to 22730017 its reverse (71003722), we get a palindrome (93733739).

The spelling of 22730017 in words is "twenty-two million, seven hundred thirty thousand, seventeen".