6981471 has 30 divisors (see below), whose sum is σ = 12138720. Its totient is φ = 3987144.

The previous prime is 6981463. The next prime is 6981497. The reversal of 6981471 is 1741896.

It is not a de Polignac number, because 6981471 - 2³ = 6981463 is a prime.

It is a super-3 number, since 3×6981471³ (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 (6981421) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3090 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (404624).

Almost surely, 2^6981471 is an apocalyptic number.

6981471 is a deficient number, since it is larger than the sum of its proper divisors (5157249).

6981471 is a wasteful number, since it uses less digits than its factorization.

6981471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1769 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 6981471 is about 2642.2473389144. The cubic root of 6981471 is about 191.1241848391.

The spelling of 6981471 in words is "six million, nine hundred eighty-one thousand, four hundred seventy-one".