3986807 has 8 divisors (see below), whose sum is σ = 4423680. Its totient is φ = 3562360.

The previous prime is 3986803. The next prime is 3986809. The reversal of 3986807 is 7086893.

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

It is a cyclic number.

It is not a de Polignac number, because 3986807 - 2² = 3986803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423 + ... + 3720.

It is an arithmetic number, because the mean of its divisors is an integer number (552960).

Almost surely, 2^3986807 is an apocalyptic number.

3986807 is a deficient number, since it is larger than the sum of its proper divisors (436873).

3986807 is a wasteful number, since it uses less digits than its factorization.

3986807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 3986807 is about 1996.6990258925. The cubic root of 3986807 is about 158.5653914553.

The spelling of 3986807 in words is "three million, nine hundred eighty-six thousand, eight hundred seven".