5436809 has 8 divisors (see below), whose sum is σ = 6483840. Its totient is φ = 4457376.

The previous prime is 5436803. The next prime is 5436829. The reversal of 5436809 is 9086345.

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

It is not a de Polignac number, because 5436809 - 2¹⁶ = 5371273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5436803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16724 + ... + 17045.

It is an arithmetic number, because the mean of its divisors is an integer number (810480).

Almost surely, 2^5436809 is an apocalyptic number.

It is an amenable number.

5436809 is a deficient number, since it is larger than the sum of its proper divisors (1047031).

5436809 is a wasteful number, since it uses less digits than its factorization.

5436809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33799.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 5436809 is about 2331.6965926123. The cubic root of 5436809 is about 175.8387922106.

It can be divided in two parts, 54 and 36809, that added together give a palindrome (36863).

The spelling of 5436809 in words is "five million, four hundred thirty-six thousand, eight hundred nine".