6779398 has 4 divisors (see below), whose sum is σ = 10169100. Its totient is φ = 3389698.

The previous prime is 6779393. The next prime is 6779441. The reversal of 6779398 is 8939776.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694848 + ... + 1694851.

It is an arithmetic number, because the mean of its divisors is an integer number (2542275).

Almost surely, 2^6779398 is an apocalyptic number.

6779398 is a deficient number, since it is larger than the sum of its proper divisors (3389702).

6779398 is a wasteful number, since it uses less digits than its factorization.

6779398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389701.

The product of its digits is 571536, while the sum is 49.

The square root of 6779398 is about 2603.7277123386. The cubic root of 6779398 is about 189.2621242771.

The spelling of 6779398 in words is "six million, seven hundred seventy-nine thousand, three hundred ninety-eight".