6344909 has 2 divisors, whose sum is σ = 6344910. Its totient is φ = 6344908.

The previous prime is 6344857. The next prime is 6344911. The reversal of 6344909 is 9094436.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5189284 + 1155625 = 2278^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 6344909 - 2¹⁶ = 6279373 is a prime.

Together with 6344911, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6344929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172454 + 3172455.

It is an arithmetic number, because the mean of its divisors is an integer number (3172455).

Almost surely, 2^6344909 is an apocalyptic number.

It is an amenable number.

6344909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6344909 is an equidigital number, since it uses as much as digits as its factorization.

6344909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6344909 is about 2518.9102802601. The cubic root of 6344909 is about 185.1292887333.

The spelling of 6344909 in words is "six million, three hundred forty-four thousand, nine hundred nine".