6777870 has 128 divisors (see below), whose sum is σ = 19906560. Its totient is φ = 1457280.

The previous prime is 6777839. The next prime is 6777923. The reversal of 6777870 is 787776.

6777870 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144187 + ... + 144233.

It is an arithmetic number, because the mean of its divisors is an integer number (155520).

Almost surely, 2^6777870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6777870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9953280).

6777870 is an abundant number, since it is smaller than the sum of its proper divisors (13128690).

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

6777870 is a wasteful number, since it uses less digits than its factorization.

6777870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 6777870 is about 2603.4342703437. The cubic root of 6777870 is about 189.2479040246.

The spelling of 6777870 in words is "six million, seven hundred seventy-seven thousand, eight hundred seventy".