22328717 has 4 divisors (see below), whose sum is σ = 22340220. Its totient is φ = 22317216.

The previous prime is 22328707. The next prime is 22328731. The reversal of 22328717 is 71782322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71782322 = 2 ⋅35891161.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 1771561 = 4534^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 22328717 - 2¹⁴ = 22312333 is a prime.

It is a super-3 number, since 3×22328717³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22328707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042 + ... + 6987.

It is an arithmetic number, because the mean of its divisors is an integer number (5585055).

Almost surely, 2^22328717 is an apocalyptic number.

It is an amenable number.

22328717 is a deficient number, since it is larger than the sum of its proper divisors (11503).

22328717 is an equidigital number, since it uses as much as digits as its factorization.

22328717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502.

The product of its digits is 9408, while the sum is 32.

The square root of 22328717 is about 4725.3271844392. The cubic root of 22328717 is about 281.5926121310.

The spelling of 22328717 in words is "twenty-two million, three hundred twenty-eight thousand, seven hundred seventeen".