5218717 has 4 divisors (see below), whose sum is σ = 5964256. Its totient is φ = 4473180.

The previous prime is 5218691. The next prime is 5218721. The reversal of 5218717 is 7178125.

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 5218717 - 2⁷ = 5218589 is a prime.

It is a super-4 number, since 4×5218717⁴ (a number of 28 digits) contains 4444 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 (5218417) 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, 372759 + ... + 372772.

It is an arithmetic number, because the mean of its divisors is an integer number (1491064).

Almost surely, 2^5218717 is an apocalyptic number.

It is an amenable number.

5218717 is a deficient number, since it is larger than the sum of its proper divisors (745539).

5218717 is an equidigital number, since it uses as much as digits as its factorization.

5218717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745538.

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

The square root of 5218717 is about 2284.4511375821. The cubic root of 5218717 is about 173.4554362372.

It can be divided in two parts, 52 and 18717, that added together give a square (18769 = 137²).

The spelling of 5218717 in words is "five million, two hundred eighteen thousand, seven hundred seventeen".