6678018 has 16 divisors (see below), whose sum is σ = 14840160. Its totient is φ = 2225988.

The previous prime is 6678017. The next prime is 6678037. The reversal of 6678018 is 8108766.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6678017) 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, 61780 + ... + 61887.

It is an arithmetic number, because the mean of its divisors is an integer number (927510).

Almost surely, 2^6678018 is an apocalyptic number.

6678018 is an abundant number, since it is smaller than the sum of its proper divisors (8162142).

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

6678018 is a wasteful number, since it uses less digits than its factorization.

6678018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123678 (or 123672 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 6678018 is about 2584.1861388066. The cubic root of 6678018 is about 188.3139653424.

The spelling of 6678018 in words is "six million, six hundred seventy-eight thousand, eighteen".