3983856 has 20 divisors (see below), whose sum is σ = 10291752. Its totient is φ = 1327936.

The previous prime is 3983839. The next prime is 3983869. The reversal of 3983856 is 6583893.

It is a super-2 number, since 2×3983856² = 31742217257472, which contains 22 as substring.

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, 41451 + ... + 41546.

Almost surely, 2^3983856 is an apocalyptic number.

It is an amenable number.

3983856 is an abundant number, since it is smaller than the sum of its proper divisors (6307896).

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

3983856 is a wasteful number, since it uses less digits than its factorization.

3983856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83008 (or 83002 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 3983856 is about 1995.9599194373. The cubic root of 3983856 is about 158.5262588888.

The spelling of 3983856 in words is "three million, nine hundred eighty-three thousand, eight hundred fifty-six".