3984896 has 40 divisors (see below), whose sum is σ = 8192184. Its totient is φ = 1935360.

The previous prime is 3984859. The next prime is 3984917. The reversal of 3984896 is 6984893.

It is a super-2 number, since 2×3984896² = 31758792261632, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3984896.

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, 21926 + ... + 22106.

Almost surely, 2^3984896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3984896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4096092).

3984896 is an abundant number, since it is smaller than the sum of its proper divisors (4207288).

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

3984896 is an equidigital number, since it uses as much as digits as its factorization.

3984896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 226 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 3984896 is about 1996.2204287102. The cubic root of 3984896 is about 158.5400523062.

The spelling of 3984896 in words is "three million, nine hundred eighty-four thousand, eight hundred ninety-six".