5356809 has 6 divisors (see below), whose sum is σ = 7737626. Its totient is φ = 3571200.

The previous prime is 5356789. The next prime is 5356817. The reversal of 5356809 is 9086535.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 2624400 = 1653^2 + 1620^2 .

It is not a de Polignac number, because 5356809 - 2¹⁹ = 4832521 is a prime.

It is a Duffinian number.

5356809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5356849) 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 5 ways as a sum of consecutive naturals, for example, 297592 + ... + 297609.

Almost surely, 2^5356809 is an apocalyptic number.

It is an amenable number.

5356809 is a deficient number, since it is larger than the sum of its proper divisors (2380817).

5356809 is a wasteful number, since it uses less digits than its factorization.

5356809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595207 (or 595204 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 5356809 is about 2314.4781269219. The cubic root of 5356809 is about 174.9720662897.

The spelling of 5356809 in words is "five million, three hundred fifty-six thousand, eight hundred nine".