3213172172 has 12 divisors (see below), whose sum is σ = 6426344400. Its totient is φ = 1377073776.

The previous prime is 3213172169. The next prime is 3213172187. The reversal of 3213172172 is 2712713123.

3213172172 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57378047 + ... + 57378102.

It is an arithmetic number, because the mean of its divisors is an integer number (535528700).

Almost surely, 2^3213172172 is an apocalyptic number.

It is an amenable number.

3213172172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3213172172 is a wasteful number, since it uses less digits than its factorization.

3213172172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114756160 (or 114756158 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 3213172172 is about 56684.8495808183. The cubic root of 3213172172 is about 1475.6317771587.

Adding to 3213172172 its reverse (2712713123), we get a palindrome (5925885295).

The spelling of 3213172172 in words is "three billion, two hundred thirteen million, one hundred seventy-two thousand, one hundred seventy-two".