6601881 has 24 divisors (see below), whose sum is σ = 10427200. Its totient is φ = 3690720.

The previous prime is 6601849. The next prime is 6601883. The reversal of 6601881 is 1881066.

It is not a de Polignac number, because 6601881 - 2⁵ = 6601849 is a prime.

It is a super-2 number, since 2×6601881² = 87169665476322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6601883) 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, 4020 + ... + 5418.

Almost surely, 2^6601881 is an apocalyptic number.

It is an amenable number.

6601881 is a deficient number, since it is larger than the sum of its proper divisors (3825319).

6601881 is a wasteful number, since it uses less digits than its factorization.

6601881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1426 counting only the distinct ones).

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

The square root of 6601881 is about 2569.4125787814. The cubic root of 6601881 is about 187.5955637299.

The spelling of 6601881 in words is "six million, six hundred one thousand, eight hundred eighty-one".