5218817 has 2 divisors, whose sum is σ = 5218818. Its totient is φ = 5218816.

The previous prime is 5218793. The next prime is 5218823. The reversal of 5218817 is 7188125.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 361201 = 2204^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 5218817 - 2¹⁴ = 5202433 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5218417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609408 + 2609409.

It is an arithmetic number, because the mean of its divisors is an integer number (2609409).

Almost surely, 2^5218817 is an apocalyptic number.

It is an amenable number.

5218817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218817 is an equidigital number, since it uses as much as digits as its factorization.

5218817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 32.

The square root of 5218817 is about 2284.4730245726. The cubic root of 5218817 is about 173.4565441361.

The spelling of 5218817 in words is "five million, two hundred eighteen thousand, eight hundred seventeen".