6891080 has 32 divisors (see below), whose sum is σ = 17720640. Its totient is φ = 2362560.

The previous prime is 6891077. The next prime is 6891107. The reversal of 6891080 is 801986.

It is a Smith number, since the sum of its digits (32) 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 7 ways as a sum of consecutive naturals, for example, 12026 + ... + 12585.

It is an arithmetic number, because the mean of its divisors is an integer number (553770).

Almost surely, 2^6891080 is an apocalyptic number.

It is an amenable number.

6891080 is an abundant number, since it is smaller than the sum of its proper divisors (10829560).

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

6891080 is a wasteful number, since it uses less digits than its factorization.

6891080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24629 (or 24625 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 6891080 is about 2625.0866652360. The cubic root of 6891080 is about 190.2957536114.

It can be divided in two parts, 68 and 91080, that multiplied together give a triangular number (6193440 = T₃₅₁₉).

The spelling of 6891080 in words is "six million, eight hundred ninety-one thousand, eighty".