6386481 has 6 divisors (see below), whose sum is σ = 9224930. Its totient is φ = 4257648.

The previous prime is 6386473. The next prime is 6386483. The reversal of 6386481 is 1846836.

It is a happy number.

6386481 is a `hidden beast` number, since 6 + 3 + 8 + 648 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 216225 = 2484^2 + 465^2 .

It is not a de Polignac number, because 6386481 - 2³ = 6386473 is a prime.

It is a super-2 number, since 2×6386481² = 81574279126722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6386483) 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 in 5 ways as a sum of consecutive naturals, for example, 354796 + ... + 354813.

Almost surely, 2^6386481 is an apocalyptic number.

It is an amenable number.

6386481 is a deficient number, since it is larger than the sum of its proper divisors (2838449).

6386481 is a wasteful number, since it uses less digits than its factorization.

6386481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709615 (or 709612 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6386481 is about 2527.1487886549. The cubic root of 6386481 is about 185.5327327731.

The spelling of 6386481 in words is "six million, three hundred eighty-six thousand, four hundred eighty-one".