6888866 has 8 divisors (see below), whose sum is σ = 10403100. Its totient is φ = 3421168.

The previous prime is 6888857. The next prime is 6888877. The reversal of 6888866 is 6688886.

It can be written as a sum of positive squares in 2 ways, for example, as 4713241 + 2175625 = 2171^2 + 1475^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11261 + ... + 11856.

Almost surely, 2^6888866 is an apocalyptic number.

6888866 is a deficient number, since it is larger than the sum of its proper divisors (3514234).

6888866 is a wasteful number, since it uses less digits than its factorization.

6888866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23268.

The product of its digits is 884736, while the sum is 50.

The square root of 6888866 is about 2624.6649309960. The cubic root of 6888866 is about 190.2753717106.

The spelling of 6888866 in words is "six million, eight hundred eighty-eight thousand, eight hundred sixty-six".