3988896 has 48 divisors (see below), whose sum is σ = 10763424. Its totient is φ = 1292544.

The previous prime is 3988889. The next prime is 3988903. The reversal of 3988896 is 6988893.

It is an interprime number because it is at equal distance from previous prime (3988889) and next prime (3988903).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3988896² = 31822582597632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2991 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (224238).

Almost surely, 2^3988896 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 3988896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5381712).

3988896 is an abundant number, since it is smaller than the sum of its proper divisors (6774528).

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

3988896 is a wasteful number, since it uses less digits than its factorization.

3988896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1165 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 3988896 is about 1997.2220707773. Note that the first 3 decimals coincide. The cubic root of 3988896 is about 158.5930815562.

It can be divided in two parts, 3988 and 896, that added together give a palindrome (4884).

The spelling of 3988896 in words is "three million, nine hundred eighty-eight thousand, eight hundred ninety-six".