3989712 has 40 divisors (see below), whose sum is σ = 10551904. Its totient is φ = 1298304.

The previous prime is 3989701. The next prime is 3989723. The reversal of 3989712 is 2179893.

It is an interprime number because it is at equal distance from previous prime (3989701) and next prime (3989723).

It is a congruent number.

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, 1098 + ... + 3030.

Almost surely, 2^3989712 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 3989712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5275952).

3989712 is an abundant number, since it is smaller than the sum of its proper divisors (6562192).

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

3989712 is a wasteful number, since it uses less digits than its factorization.

3989712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1981 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 3989712 is about 1997.4263440738. The cubic root of 3989712 is about 158.6038951691.

The spelling of 3989712 in words is "three million, nine hundred eighty-nine thousand, seven hundred twelve".