3986143 has 32 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 2903040.

The previous prime is 3986113. The next prime is 3986159. The reversal of 3986143 is 3416893.

It is not a de Polignac number, because 3986143 - 2⁵ = 3986111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3986099 and 3986108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92680 + ... + 92722.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

Almost surely, 2^3986143 is an apocalyptic number.

3986143 is a deficient number, since it is larger than the sum of its proper divisors (1336097).

3986143 is a wasteful number, since it uses less digits than its factorization.

3986143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127.

The product of its digits is 15552, while the sum is 34.

The square root of 3986143 is about 1996.5327445349. The cubic root of 3986143 is about 158.5565879804.

The spelling of 3986143 in words is "three million, nine hundred eighty-six thousand, one hundred forty-three".