6434849 has 2 divisors, whose sum is σ = 6434850. Its totient is φ = 6434848.

The previous prime is 6434843. The next prime is 6434861. The reversal of 6434849 is 9484346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4494400 + 1940449 = 2120^2 + 1393^2 .

It is a cyclic number.

It is not a de Polignac number, because 6434849 - 2⁴ = 6434833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6434843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217424 + 3217425.

It is an arithmetic number, because the mean of its divisors is an integer number (3217425).

Almost surely, 2^6434849 is an apocalyptic number.

It is an amenable number.

6434849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434849 is an equidigital number, since it uses as much as digits as its factorization.

6434849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 6434849 is about 2536.7004158946. The cubic root of 6434849 is about 185.9999325548. Note that the first 4 decimals are identical.

The spelling of 6434849 in words is "six million, four hundred thirty-four thousand, eight hundred forty-nine".