6712780 has 24 divisors (see below), whose sum is σ = 14710752. Its totient is φ = 2568192.

The previous prime is 6712753. The next prime is 6712787. The reversal of 6712780 is 872176.

It is a happy number.

It is a super-2 number, since 2×6712780² = 90122830656800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6712787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6837 + ... + 7756.

It is an arithmetic number, because the mean of its divisors is an integer number (612948).

Almost surely, 2^6712780 is an apocalyptic number.

It is an amenable number.

6712780 is an abundant number, since it is smaller than the sum of its proper divisors (7997972).

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

6712780 is a wasteful number, since it uses less digits than its factorization.

6712780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14625 (or 14623 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 6712780 is about 2590.9033173779. The cubic root of 6712780 is about 188.6401521561.

Subtracting from 6712780 its product of nonzero digits (4704), we obtain a palindrome (6708076).

The spelling of 6712780 in words is "six million, seven hundred twelve thousand, seven hundred eighty".