5408909 has 4 divisors (see below), whose sum is σ = 5900640. Its totient is φ = 4917180.

The previous prime is 5408903. The next prime is 5408917. The reversal of 5408909 is 9098045.

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 a cyclic number.

It is not a de Polignac number, because 5408909 - 2⁸ = 5408653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5408903) 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, 245849 + ... + 245870.

It is an arithmetic number, because the mean of its divisors is an integer number (1475160).

Almost surely, 2^5408909 is an apocalyptic number.

It is an amenable number.

5408909 is a deficient number, since it is larger than the sum of its proper divisors (491731).

5408909 is a wasteful number, since it uses less digits than its factorization.

5408909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491730.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 5408909 is about 2325.7061293293. The cubic root of 5408909 is about 175.5374930380.

It can be divided in two parts, 540 and 8909, that added together give a palindrome (9449).

The spelling of 5408909 in words is "five million, four hundred eight thousand, nine hundred nine".