5239818 has 12 divisors (see below), whose sum is σ = 11352978. Its totient is φ = 1746600.

The previous prime is 5239813. The next prime is 5239879. The reversal of 5239818 is 8189325.

It can be written as a sum of positive squares in only one way, i.e., 3583449 + 1656369 = 1893^2 + 1287^2 .

It is not an unprimeable number, because it can be changed into a prime (5239811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145533 + ... + 145568.

Almost surely, 2^5239818 is an apocalyptic number.

5239818 is an abundant number, since it is smaller than the sum of its proper divisors (6113160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5239818 is a wasteful number, since it uses less digits than its factorization.

5239818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291109 (or 291106 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5239818 is about 2289.0648745721. The cubic root of 5239818 is about 173.6889011057.

The spelling of 5239818 in words is "five million, two hundred thirty-nine thousand, eight hundred eighteen".