22317689 has 2 divisors, whose sum is σ = 22317690. Its totient is φ = 22317688.

The previous prime is 22317683. The next prime is 22317703. The reversal of 22317689 is 98671322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 67600 = 4717^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 22317689 - 2¹² = 22313593 is a prime.

It is a super-3 number, since 3×22317689³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22317683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11158844 + 11158845.

It is an arithmetic number, because the mean of its divisors is an integer number (11158845).

Almost surely, 2^22317689 is an apocalyptic number.

It is an amenable number.

22317689 is a deficient number, since it is larger than the sum of its proper divisors (1).

22317689 is an equidigital number, since it uses as much as digits as its factorization.

22317689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 22317689 is about 4724.1601369979. The cubic root of 22317689 is about 281.5462456110.

The spelling of 22317689 in words is "twenty-two million, three hundred seventeen thousand, six hundred eighty-nine".