6818868 has 36 divisors (see below), whose sum is σ = 19699680. Its totient is φ = 1948176.

The previous prime is 6818863. The next prime is 6818869. The reversal of 6818868 is 8688186.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13278 + ... + 13781.

Almost surely, 2^6818868 is an apocalyptic number.

It is an amenable number.

6818868 is an abundant number, since it is smaller than the sum of its proper divisors (12880812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6818868 is a wasteful number, since it uses less digits than its factorization.

6818868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27076 (or 27071 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 6818868 is about 2611.2962298445. The cubic root of 6818868 is about 189.6287116696.

The spelling of 6818868 in words is "six million, eight hundred eighteen thousand, eight hundred sixty-eight".