6493866 has 16 divisors (see below), whose sum is σ = 13552704. Its totient is φ = 2070464.

The previous prime is 6493853. The next prime is 6493909. The reversal of 6493866 is 6683946.

It is an Ulam number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 23391 + ... + 23666.

It is an arithmetic number, because the mean of its divisors is an integer number (847044).

Almost surely, 2^6493866 is an apocalyptic number.

6493866 is an abundant number, since it is smaller than the sum of its proper divisors (7058838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6493866 is a wasteful number, since it uses less digits than its factorization.

6493866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47085.

The product of its digits is 186624, while the sum is 42.

The square root of 6493866 is about 2548.3064964796. The cubic root of 6493866 is about 186.5668336634.

The spelling of 6493866 in words is "six million, four hundred ninety-three thousand, eight hundred sixty-six".