22470317 has 2 divisors, whose sum is σ = 22470318. Its totient is φ = 22470316.

The previous prime is 22470313. The next prime is 22470347. The reversal of 22470317 is 71307422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20967241 + 1503076 = 4579^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 22470317 - 2² = 22470313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22470313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11235158 + 11235159.

It is an arithmetic number, because the mean of its divisors is an integer number (11235159).

Almost surely, 2^22470317 is an apocalyptic number.

It is an amenable number.

22470317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22470317 is an equidigital number, since it uses as much as digits as its factorization.

22470317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 22470317 is about 4740.2865947113. The cubic root of 22470317 is about 282.1866083761.

Adding to 22470317 its reverse (71307422), we get a palindrome (93777739).

The spelling of 22470317 in words is "twenty-two million, four hundred seventy thousand, three hundred seventeen".