6881289 has 8 divisors (see below), whose sum is σ = 9210240. Its totient is φ = 4569936.

The previous prime is 6881269. The next prime is 6881291. The reversal of 6881289 is 9821886.

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

It is not a de Polignac number, because 6881289 - 2⁵ = 6881257 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6881289.

It is not an unprimeable number, because it can be changed into a prime (6881239) 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, 3457 + ... + 5070.

It is an arithmetic number, because the mean of its divisors is an integer number (1151280).

Almost surely, 2^6881289 is an apocalyptic number.

It is an amenable number.

6881289 is a deficient number, since it is larger than the sum of its proper divisors (2328951).

6881289 is a wasteful number, since it uses less digits than its factorization.

6881289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799.

The product of its digits is 55296, while the sum is 42.

The square root of 6881289 is about 2623.2211115344. The cubic root of 6881289 is about 190.2055854114.

The spelling of 6881289 in words is "six million, eight hundred eighty-one thousand, two hundred eighty-nine".