5218971 has 4 divisors (see below), whose sum is σ = 6958632. Its totient is φ = 3479312.

The previous prime is 5218951. The next prime is 5218987. The reversal of 5218971 is 1798125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5218971 - 2¹⁸ = 4956827 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5218951) 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, 869826 + ... + 869831.

It is an arithmetic number, because the mean of its divisors is an integer number (1739658).

Almost surely, 2^5218971 is an apocalyptic number.

5218971 is a deficient number, since it is larger than the sum of its proper divisors (1739661).

5218971 is a wasteful number, since it uses less digits than its factorization.

5218971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739660.

The product of its digits is 5040, while the sum is 33.

The square root of 5218971 is about 2284.5067301280. The cubic root of 5218971 is about 173.4582502728.

The spelling of 5218971 in words is "five million, two hundred eighteen thousand, nine hundred seventy-one".