5635909 has 4 divisors (see below), whose sum is σ = 5715360. Its totient is φ = 5556460.

The previous prime is 5635873. The next prime is 5635921. The reversal of 5635909 is 9095365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5635909 - 2¹³ = 5627717 is a prime.

It is a Duffinian number.

5635909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5635979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39619 + ... + 39760.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^5635909 is an apocalyptic number.

It is an amenable number.

5635909 is a deficient number, since it is larger than the sum of its proper divisors (79451).

5635909 is an equidigital number, since it uses as much as digits as its factorization.

5635909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79450.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 5635909 is about 2374.0069502847. The cubic root of 5635909 is about 177.9595603120.

It can be divided in two parts, 5635 and 909, that multiplied together give a palindrome (5122215).

The spelling of 5635909 in words is "five million, six hundred thirty-five thousand, nine hundred nine".