6779658 has 16 divisors (see below), whose sum is σ = 13926240. Its totient is φ = 2198736.

The previous prime is 6779657. The next prime is 6779671. The reversal of 6779658 is 8569776.

6779658 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6779653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15048 + ... + 15491.

It is an arithmetic number, because the mean of its divisors is an integer number (870390).

Almost surely, 2^6779658 is an apocalyptic number.

6779658 is an abundant number, since it is smaller than the sum of its proper divisors (7146582).

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

6779658 is a wasteful number, since it uses less digits than its factorization.

6779658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30581.

The product of its digits is 635040, while the sum is 48.

The square root of 6779658 is about 2603.7776402758. Note that the first 3 decimals coincide. The cubic root of 6779658 is about 189.2645437409.

The spelling of 6779658 in words is "six million, seven hundred seventy-nine thousand, six hundred fifty-eight".