6328909 has 2 divisors, whose sum is σ = 6328910. Its totient is φ = 6328908.

The previous prime is 6328897. The next prime is 6328939. The reversal of 6328909 is 9098236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3988009 + 2340900 = 1997^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 6328909 - 2⁵ = 6328877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6328939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164454 + 3164455.

It is an arithmetic number, because the mean of its divisors is an integer number (3164455).

Almost surely, 2^6328909 is an apocalyptic number.

It is an amenable number.

6328909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6328909 is an equidigital number, since it uses as much as digits as its factorization.

6328909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6328909 is about 2515.7322989539. The cubic root of 6328909 is about 184.9735438184.

The spelling of 6328909 in words is "six million, three hundred twenty-eight thousand, nine hundred nine".