3197187972 has 144 divisors (see below), whose sum is σ = 9050775552. Its totient is φ = 943323840.

The previous prime is 3197187949. The next prime is 3197187989. The reversal of 3197187972 is 2797817913.

3197187972 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5266893 + ... + 5267499.

It is an arithmetic number, because the mean of its divisors is an integer number (62852608).

Almost surely, 2^3197187972 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 3197187972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4525387776).

3197187972 is an abundant number, since it is smaller than the sum of its proper divisors (5853587580).

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

3197187972 is a wasteful number, since it uses less digits than its factorization.

3197187972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 953 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 3197187972 is about 56543.6819812789. The cubic root of 3197187972 is about 1473.1808229670.

The spelling of 3197187972 in words is "three billion, one hundred ninety-seven million, one hundred eighty-seven thousand, nine hundred seventy-two".