3986912 has 24 divisors (see below), whose sum is σ = 8192016. Its totient is φ = 1906432.

The previous prime is 3986897. The next prime is 3986921. The reversal of 3986912 is 2196893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973 + ... + 3444.

It is an arithmetic number, because the mean of its divisors is an integer number (341334).

Almost surely, 2^3986912 is an apocalyptic number.

3986912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3986912 is an abundant number, since it is smaller than the sum of its proper divisors (4205104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3986912 is a wasteful number, since it uses less digits than its factorization.

3986912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450 (or 5442 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 3986912 is about 1996.7253191163. The cubic root of 3986912 is about 158.5667834815.

The spelling of 3986912 in words is "three million, nine hundred eighty-six thousand, nine hundred twelve".