7971171 has 16 divisors (see below), whose sum is σ = 11499936. Its totient is φ = 4882176.

The previous prime is 7971157. The next prime is 7971199. The reversal of 7971171 is 1711797.

It is not a de Polignac number, because 7971171 - 2⁹ = 7970659 is a prime.

It is a super-2 number, since 2×7971171² = 127079134222482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11881 + ... + 12533.

It is an arithmetic number, because the mean of its divisors is an integer number (718746).

Almost surely, 2^7971171 is an apocalyptic number.

7971171 is a deficient number, since it is larger than the sum of its proper divisors (3528765).

7971171 is a wasteful number, since it uses less digits than its factorization.

7971171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its digits is 3087, while the sum is 33.

The square root of 7971171 is about 2823.3262298218. The cubic root of 7971171 is about 199.7594691739.

The spelling of 7971171 in words is "seven million, nine hundred seventy-one thousand, one hundred seventy-one".