6778327 has 4 divisors (see below), whose sum is σ = 6844240. Its totient is φ = 6712416.

The previous prime is 6778319. The next prime is 6778339. The reversal of 6778327 is 7238776.

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 6778327 - 2³ = 6778319 is a prime.

It is a Duffinian number.

6778327 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6778327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32802 + ... + 33007.

It is an arithmetic number, because the mean of its divisors is an integer number (1711060).

Almost surely, 2^6778327 is an apocalyptic number.

6778327 is a deficient number, since it is larger than the sum of its proper divisors (65913).

6778327 is a wasteful number, since it uses less digits than its factorization.

6778327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65912.

The product of its digits is 98784, while the sum is 40.

The square root of 6778327 is about 2603.5220375484. The cubic root of 6778327 is about 189.2521572953.

The spelling of 6778327 in words is "six million, seven hundred seventy-eight thousand, three hundred twenty-seven".