6774979 has 4 divisors (see below), whose sum is σ = 6842160. Its totient is φ = 6707800.

The previous prime is 6774967. The next prime is 6774983. The reversal of 6774979 is 9794776.

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

It is a cyclic number.

It is not a de Polignac number, because 6774979 - 2¹⁷ = 6643907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6774179) 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 in 3 ways as a sum of consecutive naturals, for example, 33439 + ... + 33640.

It is an arithmetic number, because the mean of its divisors is an integer number (1710540).

Almost surely, 2^6774979 is an apocalyptic number.

6774979 is a deficient number, since it is larger than the sum of its proper divisors (67181).

6774979 is a wasteful number, since it uses less digits than its factorization.

6774979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67180.

The product of its digits is 666792, while the sum is 49.

The square root of 6774979 is about 2602.8789829725. The cubic root of 6774979 is about 189.2209932351.

The spelling of 6774979 in words is "six million, seven hundred seventy-four thousand, nine hundred seventy-nine".