6386994 has 12 divisors (see below), whose sum is σ = 13838526. Its totient is φ = 2128992.

The previous prime is 6386981. The next prime is 6387001. The reversal of 6386994 is 4996836.

6386994 is a `hidden beast` number, since 638 + 6 + 9 + 9 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 1656369 = 2175^2 + 1287^2 .

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 5 ways as a sum of consecutive naturals, for example, 177399 + ... + 177434.

Almost surely, 2^6386994 is an apocalyptic number.

6386994 is an abundant number, since it is smaller than the sum of its proper divisors (7451532).

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

6386994 is a wasteful number, since it uses less digits than its factorization.

6386994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354841 (or 354838 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 6386994 is about 2527.2502844000. The cubic root of 6386994 is about 185.5377003362.

The spelling of 6386994 in words is "six million, three hundred eighty-six thousand, nine hundred ninety-four".