6667788 has 24 divisors (see below), whose sum is σ = 15814960. Its totient is φ = 2185920.

The previous prime is 6667781. The next prime is 6667813. The reversal of 6667788 is 8877666.

6667788 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6 + 6 + 6⁶ + 7⁷ + 7⁸ + 8 + 8⁵ .

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6667781) 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, 3823 + ... + 5286.

Almost surely, 2^6667788 is an apocalyptic number.

It is an amenable number.

6667788 is an abundant number, since it is smaller than the sum of its proper divisors (9147172).

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

6667788 is a wasteful number, since it uses less digits than its factorization.

6667788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9177 (or 9175 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 6667788 is about 2582.2060336077. The cubic root of 6667788 is about 188.2177573353.

The spelling of 6667788 in words is "six million, six hundred sixty-seven thousand, seven hundred eighty-eight".