5409309 has 4 divisors (see below), whose sum is σ = 7212416. Its totient is φ = 3606204.

The previous prime is 5409293. The next prime is 5409317. The reversal of 5409309 is 9039045.

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 5409309 - 2⁴ = 5409293 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409409) 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, 901549 + ... + 901554.

It is an arithmetic number, because the mean of its divisors is an integer number (1803104).

Almost surely, 2^5409309 is an apocalyptic number.

It is an amenable number.

5409309 is a deficient number, since it is larger than the sum of its proper divisors (1803107).

5409309 is a wasteful number, since it uses less digits than its factorization.

5409309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803106.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 5409309 is about 2325.7921231271. The cubic root of 5409309 is about 175.5418200515.

The spelling of 5409309 in words is "five million, four hundred nine thousand, three hundred nine".