3986542 has 24 divisors (see below), whose sum is σ = 7325640. Its totient is φ = 1617840.

The previous prime is 3986539. The next prime is 3986581. The reversal of 3986542 is 2456893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792 + ... + 2932.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

Almost surely, 2^3986542 is an apocalyptic number.

3986542 is a deficient number, since it is larger than the sum of its proper divisors (3339098).

3986542 is a wasteful number, since it uses less digits than its factorization.

3986542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2169 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 3986542 is about 1996.6326652642. The cubic root of 3986542 is about 158.5618781375.

The spelling of 3986542 in words is "three million, nine hundred eighty-six thousand, five hundred forty-two".