3988116 has 72 divisors (see below), whose sum is σ = 11435424. Its totient is φ = 1205280.

The previous prime is 3988097. The next prime is 3988129. The reversal of 3988116 is 6118893.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10506 + ... + 10878.

Almost surely, 2^3988116 is an apocalyptic number.

3988116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3988116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5717712).

3988116 is an abundant number, since it is smaller than the sum of its proper divisors (7447308).

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

3988116 is a wasteful number, since it uses less digits than its factorization.

3988116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 389 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 3988116 is about 1997.0267900056. The cubic root of 3988116 is about 158.5827436359.

The spelling of 3988116 in words is "three million, nine hundred eighty-eight thousand, one hundred sixteen".