6449886 has 12 divisors (see below), whose sum is σ = 13974792. Its totient is φ = 2149956.

The previous prime is 6449881. The next prime is 6449887. The reversal of 6449886 is 6889446.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179146 + ... + 179181.

It is an arithmetic number, because the mean of its divisors is an integer number (1164566).

Almost surely, 2^6449886 is an apocalyptic number.

6449886 is an abundant number, since it is smaller than the sum of its proper divisors (7524906).

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

6449886 is a wasteful number, since it uses less digits than its factorization.

6449886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358335 (or 358332 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 6449886 is about 2539.6625760128. The cubic root of 6449886 is about 186.1447018270.

The spelling of 6449886 in words is "six million, four hundred forty-nine thousand, eight hundred eighty-six".