4097309 has 4 divisors (see below), whose sum is σ = 4164540. Its totient is φ = 4030080.

The previous prime is 4097299. The next prime is 4097321. The reversal of 4097309 is 9037904.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 3694084 = 635^2 + 1922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4097309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4097389) 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, 33524 + ... + 33645.

It is an arithmetic number, because the mean of its divisors is an integer number (1041135).

Almost surely, 2^4097309 is an apocalyptic number.

It is an amenable number.

4097309 is a deficient number, since it is larger than the sum of its proper divisors (67231).

4097309 is an equidigital number, since it uses as much as digits as its factorization.

4097309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67230.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 4097309 is about 2024.1810689758. The cubic root of 4097309 is about 160.0170424555.

The spelling of 4097309 in words is "four million, ninety-seven thousand, three hundred nine".