3989341272 has 96 divisors (see below), whose sum is σ = 11693445120. Its totient is φ = 1130794560.

The previous prime is 3989341267. The next prime is 3989341273. The reversal of 3989341272 is 2721439893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989341273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135997 + ... + 162707.

It is an arithmetic number, because the mean of its divisors is an integer number (121806720).

Almost surely, 2^3989341272 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 3989341272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5846722560).

3989341272 is an abundant number, since it is smaller than the sum of its proper divisors (7704103848).

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

3989341272 is a wasteful number, since it uses less digits than its factorization.

3989341272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26861 (or 26850 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 3989341272 is about 63161.2323502321. The cubic root of 3989341272 is about 1585.9898247310.

The spelling of 3989341272 in words is "three billion, nine hundred eighty-nine million, three hundred forty-one thousand, two hundred seventy-two".