6379986 has 16 divisors (see below), whose sum is σ = 13171968. Its totient is φ = 2058000.

The previous prime is 6379963. The next prime is 6379999. The reversal of 6379986 is 6899736.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 16965 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (823248).

Almost surely, 2^6379986 is an apocalyptic number.

6379986 is an abundant number, since it is smaller than the sum of its proper divisors (6791982).

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

6379986 is a wasteful number, since it uses less digits than its factorization.

6379986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34337.

The product of its digits is 489888, while the sum is 48.

The square root of 6379986 is about 2525.8634167350. The cubic root of 6379986 is about 185.4698163389.

The spelling of 6379986 in words is "six million, three hundred seventy-nine thousand, nine hundred eighty-six".