6343409 has 2 divisors, whose sum is σ = 6343410. Its totient is φ = 6343408.

The previous prime is 6343399. The next prime is 6343417. The reversal of 6343409 is 9043436.

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., 6265009 + 78400 = 2503^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 6343409 - 2⁸ = 6343153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6343429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171704 + 3171705.

It is an arithmetic number, because the mean of its divisors is an integer number (3171705).

Almost surely, 2^6343409 is an apocalyptic number.

It is an amenable number.

6343409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343409 is an equidigital number, since it uses as much as digits as its factorization.

6343409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 6343409 is about 2518.6125148581. The cubic root of 6343409 is about 185.1146987779.

The spelling of 6343409 in words is "six million, three hundred forty-three thousand, four hundred nine".