5218739 has 8 divisors (see below), whose sum is σ = 5475648. Its totient is φ = 4968000.

The previous prime is 5218729. The next prime is 5218793. The reversal of 5218739 is 9378125.

5218739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5218739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5218699 and 5218708.

It is not an unprimeable number, because it can be changed into a prime (5218729) 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 7 ways as a sum of consecutive naturals, for example, 239 + ... + 3239.

It is an arithmetic number, because the mean of its divisors is an integer number (684456).

Almost surely, 2^5218739 is an apocalyptic number.

5218739 is a deficient number, since it is larger than the sum of its proper divisors (256909).

5218739 is a wasteful number, since it uses less digits than its factorization.

5218739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its digits is 15120, while the sum is 35.

The square root of 5218739 is about 2284.4559527380. The cubic root of 5218739 is about 173.4556799762.

The spelling of 5218739 in words is "five million, two hundred eighteen thousand, seven hundred thirty-nine".