6678881 has 8 divisors (see below), whose sum is σ = 7336128. Its totient is φ = 6030000.

The previous prime is 6678877. The next prime is 6678883. The reversal of 6678881 is 1888766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6678881 - 2² = 6678877 is a prime.

It is a super-2 number, since 2×6678881² = 89214902824322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6678883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 3671.

It is an arithmetic number, because the mean of its divisors is an integer number (917016).

Almost surely, 2^6678881 is an apocalyptic number.

It is an amenable number.

6678881 is a deficient number, since it is larger than the sum of its proper divisors (657247).

6678881 is a wasteful number, since it uses less digits than its factorization.

6678881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183.

The product of its digits is 129024, while the sum is 44.

The square root of 6678881 is about 2584.3531105482. The cubic root of 6678881 is about 188.3220769284.

The spelling of 6678881 in words is "six million, six hundred seventy-eight thousand, eight hundred eighty-one".