3971147260 has 12 divisors (see below), whose sum is σ = 8339409288. Its totient is φ = 1588458896.

The previous prime is 3971147239. The next prime is 3971147261. The reversal of 3971147260 is 627411793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971147261) 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, 99278662 + ... + 99278701.

It is an arithmetic number, because the mean of its divisors is an integer number (694950774).

Almost surely, 2^3971147260 is an apocalyptic number.

It is an amenable number.

3971147260 is an abundant number, since it is smaller than the sum of its proper divisors (4368262028).

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

3971147260 is a wasteful number, since it uses less digits than its factorization.

3971147260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198557372 (or 198557370 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 3971147260 is about 63017.0394417256. The cubic root of 3971147260 is about 1583.5750989145.

The spelling of 3971147260 in words is "three billion, nine hundred seventy-one million, one hundred forty-seven thousand, two hundred sixty".