5218984397 has 4 divisors (see below), whose sum is σ = 5693437536. Its totient is φ = 4744531260.

The previous prime is 5218984373. The next prime is 5218984427. The reversal of 5218984397 is 7934898125.

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 5218984397 - 2¹⁸ = 5218722253 is a prime.

It is a super-2 number, since 2×5218984397² = 54475596272258907218, which contains 22 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 (5218984097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237226553 + ... + 237226574.

It is an arithmetic number, because the mean of its divisors is an integer number (1423359384).

Almost surely, 2^5218984397 is an apocalyptic number.

It is an amenable number.

5218984397 is a deficient number, since it is larger than the sum of its proper divisors (474453139).

5218984397 is a wasteful number, since it uses less digits than its factorization.

5218984397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474453138.

The product of its digits is 4354560, while the sum is 56.

The square root of 5218984397 is about 72242.5386943178. The cubic root of 5218984397 is about 1734.5839869400.

The spelling of 5218984397 in words is "five billion, two hundred eighteen million, nine hundred eighty-four thousand, three hundred ninety-seven".