3147895872 has 168 divisors, whose sum is σ = 10208251872. Its totient is φ = 953856000.

The previous prime is 3147895871. The next prime is 3147895901. The reversal of 3147895872 is 2785987413.

It is a happy number.

3147895872 is a `hidden beast` number, since 3 + 1 + 478 + 95 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3147895871) 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, 161872 + ... + 180272.

It is an arithmetic number, because the mean of its divisors is an integer number (60763404).

Almost surely, 2^3147895872 is an apocalyptic number.

3147895872 is a gapful number since it is divisible by the number (32) 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 3147895872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5104125936).

3147895872 is an abundant number, since it is smaller than the sum of its proper divisors (7060356000).

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

3147895872 is a wasteful number, since it uses less digits than its factorization.

3147895872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18439 (or 18417 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 3147895872 is about 56106.1126081642. The cubic root of 3147895872 is about 1465.5707409000.

The spelling of 3147895872 in words is "three billion, one hundred forty-seven million, eight hundred ninety-five thousand, eight hundred seventy-two".