386986844 has 12 divisors (see below), whose sum is σ = 717063984. Its totient is φ = 182111424.

The previous prime is 386986843. The next prime is 386986883. The reversal of 386986844 is 448689683.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 386986844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386986843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845424 + ... + 2845559.

It is an arithmetic number, because the mean of its divisors is an integer number (59755332).

Almost surely, 2^386986844 is an apocalyptic number.

386986844 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

386986844 is a deficient number, since it is larger than the sum of its proper divisors (330077140).

386986844 is a wasteful number, since it uses less digits than its factorization.

386986844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691004 (or 5691002 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The square root of 386986844 is about 19671.9811915323. The cubic root of 386986844 is about 728.7279052641.

The spelling of 386986844 in words is "three hundred eighty-six million, nine hundred eighty-six thousand, eight hundred forty-four".