6708780 has 144 divisors (see below), whose sum is σ = 22748544. Its totient is φ = 1589760.

The previous prime is 6708749. The next prime is 6708781. The reversal of 6708780 is 878076.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6708781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109950 + ... + 110010.

It is an arithmetic number, because the mean of its divisors is an integer number (157976).

Almost surely, 2^6708780 is an apocalyptic number.

6708780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

6708780 is the 2115-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6708780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11374272).

6708780 is an abundant number, since it is smaller than the sum of its proper divisors (16039764).

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

6708780 is a wasteful number, since it uses less digits than its factorization.

6708780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 6708780 is about 2590.1312708046. The cubic root of 6708780 is about 188.6026758530.

6708780 divided by its sum of digits (36) gives a triangular number (186355 = T₆₁₀).

The spelling of 6708780 in words is "six million, seven hundred eight thousand, seven hundred eighty".