6406867 has 2 divisors, whose sum is σ = 6406868. Its totient is φ = 6406866.

The previous prime is 6406861. The next prime is 6406877. The reversal of 6406867 is 7686046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6406867 - 2¹¹ = 6404819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6406861) 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, 3203433 + 3203434.

It is an arithmetic number, because the mean of its divisors is an integer number (3203434).

Almost surely, 2^6406867 is an apocalyptic number.

6406867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406867 is an equidigital number, since it uses as much as digits as its factorization.

6406867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 6406867 is about 2531.1789743122. The cubic root of 6406867 is about 185.7299333392.

The spelling of 6406867 in words is "six million, four hundred six thousand, eight hundred sixty-seven".