5217817 has 4 divisors (see below), whose sum is σ = 5692176. Its totient is φ = 4743460.

The previous prime is 5217809. The next prime is 5217841. The reversal of 5217817 is 7187125.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5217817 - 2³ = 5217809 is a prime.

It is a super-2 number, since 2×5217817² = 54451228490978, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5217847) 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, 237163 + ... + 237184.

It is an arithmetic number, because the mean of its divisors is an integer number (1423044).

Almost surely, 2^5217817 is an apocalyptic number.

It is an amenable number.

5217817 is a deficient number, since it is larger than the sum of its proper divisors (474359).

5217817 is a wasteful number, since it uses less digits than its factorization.

5217817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474358.

The product of its digits is 3920, while the sum is 31.

The square root of 5217817 is about 2284.2541452299. The cubic root of 5217817 is about 173.4454645099.

It can be divided in two parts, 521 and 7817, that added together give a palindrome (8338).

The spelling of 5217817 in words is "five million, two hundred seventeen thousand, eight hundred seventeen".