7971471 has 12 divisors (see below), whose sum is σ = 11545248. Its totient is φ = 5300064.

The previous prime is 7971461. The next prime is 7971493. The reversal of 7971471 is 1741797.

It is a de Polignac number, because none of the positive numbers 2^k-7971471 is a prime.

It is a super-3 number, since 3×7971471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971401) 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 11 ways as a sum of consecutive naturals, for example, 3211 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (962104).

Almost surely, 2^7971471 is an apocalyptic number.

7971471 is a deficient number, since it is larger than the sum of its proper divisors (3573777).

7971471 is a wasteful number, since it uses less digits than its factorization.

7971471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2379 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 7971471 is about 2823.3793581451. The cubic root of 7971471 is about 199.7619751666.

The spelling of 7971471 in words is "seven million, nine hundred seventy-one thousand, four hundred seventy-one".