6971680 has 24 divisors (see below), whose sum is σ = 16470972. Its totient is φ = 2788608.

The previous prime is 6971677. The next prime is 6971693. The reversal of 6971680 is 861796.

6971680 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5779216 + 1192464 = 2404^2 + 1092^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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, 21627 + ... + 21946.

Almost surely, 2^6971680 is an apocalyptic number.

It is an amenable number.

6971680 is an abundant number, since it is smaller than the sum of its proper divisors (9499292).

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

6971680 is a wasteful number, since it uses less digits than its factorization.

6971680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43588 (or 43580 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 6971680 is about 2640.3939100066. The cubic root of 6971680 is about 191.0347971651.

It can be divided in two parts, 69716 and 80, that added together give a palindrome (69796).

The spelling of 6971680 in words is "six million, nine hundred seventy-one thousand, six hundred eighty".