3172884856 has 32 divisors (see below), whose sum is σ = 6066576000. Its totient is φ = 1555182720.

The previous prime is 3172884839. The next prime is 3172884857. The reversal of 3172884856 is 6584882713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172884857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654361 + ... + 659191.

It is an arithmetic number, because the mean of its divisors is an integer number (189580500).

Almost surely, 2^3172884856 is an apocalyptic number.

It is an amenable number.

3172884856 is a deficient number, since it is larger than the sum of its proper divisors (2893691144).

3172884856 is a wasteful number, since it uses less digits than its factorization.

3172884856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439 (or 6435 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The square root of 3172884856 is about 56328.3663530197. The cubic root of 3172884856 is about 1469.4385774702.

The spelling of 3172884856 in words is "three billion, one hundred seventy-two million, eight hundred eighty-four thousand, eight hundred fifty-six".