8422717 has 8 divisors (see below), whose sum is σ = 8696376. Its totient is φ = 8151552.

The previous prime is 8422703. The next prime is 8422723. The reversal of 8422717 is 7172248.

It can be written as a sum of positive squares in 4 ways, for example, as 3709476 + 4713241 = 1926^2 + 2171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8422717 - 2¹¹ = 8420669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8133 + ... + 9109.

It is an arithmetic number, because the mean of its divisors is an integer number (1087047).

Almost surely, 2^8422717 is an apocalyptic number.

It is an amenable number.

8422717 is a deficient number, since it is larger than the sum of its proper divisors (273659).

8422717 is a wasteful number, since it uses less digits than its factorization.

8422717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its digits is 6272, while the sum is 31.

The square root of 8422717 is about 2902.1917579650. The cubic root of 8422717 is about 203.4623562267.

It can be divided in two parts, 84 and 22717, that added together give a square (22801 = 151²).

The spelling of 8422717 in words is "eight million, four hundred twenty-two thousand, seven hundred seventeen".