3843986 has 8 divisors (see below), whose sum is σ = 5781564. Its totient is φ = 1916800.

The previous prime is 3843977. The next prime is 3844019. The reversal of 3843986 is 6893483.

It can be written as a sum of positive squares in 2 ways, for example, as 2805625 + 1038361 = 1675^2 + 1019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595 + ... + 3198.

Almost surely, 2^3843986 is an apocalyptic number.

3843986 is a deficient number, since it is larger than the sum of its proper divisors (1937578).

3843986 is a wasteful number, since it uses less digits than its factorization.

3843986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196.

The product of its digits is 124416, while the sum is 41.

The square root of 3843986 is about 1960.6085789877. The cubic root of 3843986 is about 156.6488697655.

The spelling of 3843986 in words is "three million, eight hundred forty-three thousand, nine hundred eighty-six".