6610881 has 16 divisors (see below), whose sum is σ = 9168768. Its totient is φ = 4233600.

The previous prime is 6610861. The next prime is 6610883. The reversal of 6610881 is 1880166.

It is not a de Polignac number, because 6610881 - 2⁶ = 6610817 is a prime.

It is a super-2 number, since 2×6610881² = 87407495192322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6610883) 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 15 ways as a sum of consecutive naturals, for example, 8355 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (573048).

Almost surely, 2^6610881 is an apocalyptic number.

It is an amenable number.

6610881 is a deficient number, since it is larger than the sum of its proper divisors (2557887).

6610881 is a wasteful number, since it uses less digits than its factorization.

6610881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 6610881 is about 2571.1633553705. The cubic root of 6610881 is about 187.6807714374.

The spelling of 6610881 in words is "six million, six hundred ten thousand, eight hundred eighty-one".