6778674 has 64 divisors (see below), whose sum is σ = 17510400. Its totient is φ = 1903824.

The previous prime is 6778661. The next prime is 6778691. The reversal of 6778674 is 4768776.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29749 + ... + 29975.

It is an arithmetic number, because the mean of its divisors is an integer number (273600).

Almost surely, 2^6778674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6778674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8755200).

6778674 is an abundant number, since it is smaller than the sum of its proper divisors (10731726).

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

6778674 is a wasteful number, since it uses less digits than its factorization.

6778674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 318 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 6778674 is about 2603.5886771915. The cubic root of 6778674 is about 189.2553866751.

The spelling of 6778674 in words is "six million, seven hundred seventy-eight thousand, six hundred seventy-four".