6343861 has 2 divisors, whose sum is σ = 6343862. Its totient is φ = 6343860.

The previous prime is 6343859. The next prime is 6343877. The reversal of 6343861 is 1683436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5788836 + 555025 = 2406^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 6343861 - 2¹ = 6343859 is a prime.

Together with 6343859, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6343801) 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, 3171930 + 3171931.

It is an arithmetic number, because the mean of its divisors is an integer number (3171931).

Almost surely, 2^6343861 is an apocalyptic number.

It is an amenable number.

6343861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343861 is an equidigital number, since it uses as much as digits as its factorization.

6343861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 6343861 is about 2518.7022452049. The cubic root of 6343861 is about 185.1190954599.

The spelling of 6343861 in words is "six million, three hundred forty-three thousand, eight hundred sixty-one".