3998896 has 20 divisors (see below), whose sum is σ = 8452584. Its totient is φ = 1817600.

The previous prime is 3998881. The next prime is 3998899. The reversal of 3998896 is 6988993.

It is a super-3 number, since 3×3998896³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3998899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11185 + ... + 11536.

Almost surely, 2^3998896 is an apocalyptic number.

It is an amenable number.

3998896 is an abundant number, since it is smaller than the sum of its proper divisors (4453688).

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

3998896 is a wasteful number, since it uses less digits than its factorization.

3998896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22740 (or 22734 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 3998896 is about 1999.7239809534. The cubic root of 3998896 is about 158.7254997634.

It can be divided in two parts, 3 and 998896, that added together give a palindrome (998899).

The spelling of 3998896 in words is "three million, nine hundred ninety-eight thousand, eight hundred ninety-six".