6393896 has 16 divisors (see below), whose sum is σ = 12313140. Its totient is φ = 3110400.

The previous prime is 6393869. The next prime is 6393911. The reversal of 6393896 is 6983936.

It can be written as a sum of positive squares in 2 ways, for example, as 5152900 + 1240996 = 2270^2 + 1114^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10505 + ... + 11096.

Almost surely, 2^6393896 is an apocalyptic number.

It is an amenable number.

6393896 is a deficient number, since it is larger than the sum of its proper divisors (5919244).

6393896 is a wasteful number, since it uses less digits than its factorization.

6393896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21644 (or 21640 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 6393896 is about 2528.6154314170. The cubic root of 6393896 is about 185.6045090314.

The spelling of 6393896 in words is "six million, three hundred ninety-three thousand, eight hundred ninety-six".