6711780 has 24 divisors (see below), whose sum is σ = 18793152. Its totient is φ = 1789792.

The previous prime is 6711773. The next prime is 6711797. The reversal of 6711780 is 871176.

6711780 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55872 + ... + 55991.

It is an arithmetic number, because the mean of its divisors is an integer number (783048).

Almost surely, 2^6711780 is an apocalyptic number.

6711780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6711780 is an abundant number, since it is smaller than the sum of its proper divisors (12081372).

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

6711780 is a wasteful number, since it uses less digits than its factorization.

6711780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111875 (or 111873 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 6711780 is about 2590.7103273041. The cubic root of 6711780 is about 188.6307844763.

The spelling of 6711780 in words is "six million, seven hundred eleven thousand, seven hundred eighty".