6778851 has 8 divisors (see below), whose sum is σ = 9050640. Its totient is φ = 4513152.

The previous prime is 6778841. The next prime is 6778861. The reversal of 6778851 is 1588776.

It is an interprime number because it is at equal distance from previous prime (6778841) and next prime (6778861).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6778851 - 2⁹ = 6778339 is a prime.

6778851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6778831) 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, 2991 + ... + 4743.

It is an arithmetic number, because the mean of its divisors is an integer number (1131330).

Almost surely, 2^6778851 is an apocalyptic number.

6778851 is a deficient number, since it is larger than the sum of its proper divisors (2271789).

6778851 is a wasteful number, since it uses less digits than its factorization.

6778851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045.

The product of its digits is 94080, while the sum is 42.

The square root of 6778851 is about 2603.6226685140. The cubic root of 6778851 is about 189.2570338956.

The spelling of 6778851 in words is "six million, seven hundred seventy-eight thousand, eight hundred fifty-one".