8396217 has 10 divisors (see below), whose sum is σ = 12542618. Its totient is φ = 5597424.

The previous prime is 8396189. The next prime is 8396243. The reversal of 8396217 is 7126938.

It can be written as a sum of positive squares in only one way, i.e., 4511376 + 3884841 = 2124^2 + 1971^2 .

It is not a de Polignac number, because 8396217 - 2¹⁰ = 8395193 is a prime.

It is a super-2 number, since 2×8396217² = 140992919822178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8396117) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51748 + ... + 51909.

Almost surely, 2^8396217 is an apocalyptic number.

It is an amenable number.

8396217 is a deficient number, since it is larger than the sum of its proper divisors (4146401).

8396217 is a wasteful number, since it uses less digits than its factorization.

8396217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103669 (or 103660 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 8396217 is about 2897.6226462395. The cubic root of 8396217 is about 203.2487506902.

It can be divided in two parts, 839 and 6217, that added together give a square (7056 = 84²).

The spelling of 8396217 in words is "eight million, three hundred ninety-six thousand, two hundred seventeen".