6449685 has 16 divisors (see below), whose sum is σ = 11257920. Its totient is φ = 3127040.

The previous prime is 6449671. The next prime is 6449693. The reversal of 6449685 is 5869446.

It is not a de Polignac number, because 6449685 - 2⁹ = 6449173 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19380 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (703620).

Almost surely, 2^6449685 is an apocalyptic number.

It is an amenable number.

6449685 is a deficient number, since it is larger than the sum of its proper divisors (4808235).

6449685 is a wasteful number, since it uses less digits than its factorization.

6449685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39108.

The product of its digits is 207360, while the sum is 42.

The square root of 6449685 is about 2539.6230035184. The cubic root of 6449685 is about 186.1427681766.

The spelling of 6449685 in words is "six million, four hundred forty-nine thousand, six hundred eighty-five".