6706581 has 24 divisors (see below), whose sum is σ = 10653984. Its totient is φ = 3739680.

The previous prime is 6706573. The next prime is 6706591. The reversal of 6706581 is 1856076.

6706581 is nontrivially palindromic in base 6.

6706581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6706581 - 2³ = 6706573 is a prime.

It is a super-2 number, since 2×6706581² = 89956457419122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6706591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5791 + ... + 6851.

It is an arithmetic number, because the mean of its divisors is an integer number (443916).

Almost surely, 2^6706581 is an apocalyptic number.

It is an amenable number.

6706581 is a deficient number, since it is larger than the sum of its proper divisors (3947403).

6706581 is a wasteful number, since it uses less digits than its factorization.

6706581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 6706581 is about 2589.7067401542. The cubic root of 6706581 is about 188.5820669093.

The spelling of 6706581 in words is "six million, seven hundred six thousand, five hundred eighty-one".