5398209 has 12 divisors (see below), whose sum is σ = 7945236. Its totient is φ = 3530592.

The previous prime is 5398207. The next prime is 5398213. The reversal of 5398209 is 9028935.

It can be written as a sum of positive squares in 2 ways, for example, as 4717584 + 680625 = 2172^2 + 825^2 .

It is not a de Polignac number, because 5398209 - 2¹ = 5398207 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5398207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5182 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (662103).

Almost surely, 2^5398209 is an apocalyptic number.

It is an amenable number.

5398209 is a deficient number, since it is larger than the sum of its proper divisors (2547027).

5398209 is a wasteful number, since it uses less digits than its factorization.

5398209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11376 (or 11373 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 5398209 is about 2323.4046139233. The cubic root of 5398209 is about 175.4216661637.

The spelling of 5398209 in words is "five million, three hundred ninety-eight thousand, two hundred nine".