7171972 has 12 divisors (see below), whose sum is σ = 12570460. Its totient is φ = 3580416.

The previous prime is 7171951. The next prime is 7171979. The reversal of 7171972 is 2791717.

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 4268356 = 1704^2 + 2066^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7171979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3148 + ... + 4924.

Almost surely, 2^7171972 is an apocalyptic number.

It is an amenable number.

7171972 is a deficient number, since it is larger than the sum of its proper divisors (5398488).

7171972 is a wasteful number, since it uses less digits than its factorization.

7171972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2788 counting only the distinct ones).

The product of its digits is 6174, while the sum is 34.

The square root of 7171972 is about 2678.0537709314. The cubic root of 7171972 is about 192.8469887135.

The spelling of 7171972 in words is "seven million, one hundred seventy-one thousand, nine hundred seventy-two".