22472717 has 2 divisors, whose sum is σ = 22472718. Its totient is φ = 22472716.

The previous prime is 22472713. The next prime is 22472729. The reversal of 22472717 is 71727422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 137641 = 4726^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 22472717 - 2² = 22472713 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22472711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11236358 + 11236359.

It is an arithmetic number, because the mean of its divisors is an integer number (11236359).

Almost surely, 2^22472717 is an apocalyptic number.

It is an amenable number.

22472717 is a deficient number, since it is larger than the sum of its proper divisors (1).

22472717 is an equidigital number, since it uses as much as digits as its factorization.

22472717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10976, while the sum is 32.

The square root of 22472717 is about 4740.5397372029. The cubic root of 22472717 is about 282.1966545740.

The spelling of 22472717 in words is "twenty-two million, four hundred seventy-two thousand, seven hundred seventeen".