8422617289 has 4 divisors (see below), whose sum is σ = 8437215124. Its totient is φ = 8408019456.

The previous prime is 8422617283. The next prime is 8422617299. The reversal of 8422617289 is 9827162248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7922424064 + 500193225 = 89008^2 + 22365^2 .

It is a cyclic number.

It is not a de Polignac number, because 8422617289 - 2²¹ = 8420520137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8422617283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7298052 + ... + 7299205.

It is an arithmetic number, because the mean of its divisors is an integer number (2109303781).

Almost surely, 2^8422617289 is an apocalyptic number.

It is an amenable number.

8422617289 is a deficient number, since it is larger than the sum of its proper divisors (14597835).

8422617289 is a wasteful number, since it uses less digits than its factorization.

8422617289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597834.

The product of its digits is 774144, while the sum is 49.

The square root of 8422617289 is about 91774.8183817326. The cubic root of 8422617289 is about 2034.6155333787.

The spelling of 8422617289 in words is "eight billion, four hundred twenty-two million, six hundred seventeen thousand, two hundred eighty-nine".