3986901 has 16 divisors (see below), whose sum is σ = 5982720. Its totient is φ = 2656476.

The previous prime is 3986897. The next prime is 3986921. The reversal of 3986901 is 1096893.

It is not a de Polignac number, because 3986901 - 2² = 3986897 is a prime.

3986901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (373920).

Almost surely, 2^3986901 is an apocalyptic number.

It is an amenable number.

3986901 is a deficient number, since it is larger than the sum of its proper divisors (1995819).

3986901 is an frugal number, since it uses more digits than its factorization.

3986901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1826 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3986901 is about 1996.7225646043. The cubic root of 3986901 is about 158.5666376514.

The spelling of 3986901 in words is "three million, nine hundred eighty-six thousand, nine hundred one".