3986786 has 8 divisors (see below), whose sum is σ = 6173184. Its totient is φ = 1929060.

The previous prime is 3986783. The next prime is 3986803. The reversal of 3986786 is 6876893.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3986786.

It is not an unprimeable number, because it can be changed into a prime (3986783) 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, 32090 + ... + 32213.

It is an arithmetic number, because the mean of its divisors is an integer number (771648).

Almost surely, 2^3986786 is an apocalyptic number.

3986786 is a deficient number, since it is larger than the sum of its proper divisors (2186398).

3986786 is a wasteful number, since it uses less digits than its factorization.

3986786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64336.

The product of its digits is 435456, while the sum is 47.

The square root of 3986786 is about 1996.6937672062. The cubic root of 3986786 is about 158.5651130471.

The spelling of 3986786 in words is "three million, nine hundred eighty-six thousand, seven hundred eighty-six".