3986516 has 6 divisors (see below), whose sum is σ = 6976410. Its totient is φ = 1993256.

The previous prime is 3986513. The next prime is 3986519. The reversal of 3986516 is 6156893.

3986516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3986513) and next prime (3986519).

It can be written as a sum of positive squares in only one way, i.e., 3984016 + 2500 = 1996^2 + 50^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3986516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498311 + ... + 498318.

It is an arithmetic number, because the mean of its divisors is an integer number (1162735).

Almost surely, 2^3986516 is an apocalyptic number.

It is an amenable number.

3986516 is a deficient number, since it is larger than the sum of its proper divisors (2989894).

3986516 is a wasteful number, since it uses less digits than its factorization.

3986516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996633 (or 996631 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 3986516 is about 1996.6261542913. The cubic root of 3986516 is about 158.5615334262.

The spelling of 3986516 in words is "three million, nine hundred eighty-six thousand, five hundred sixteen".