6799778 has 8 divisors (see below), whose sum is σ = 10314540. Its totient is φ = 3361600.

The previous prime is 6799769. The next prime is 6799781. The reversal of 6799778 is 8779976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 332929 = 2543^2 + 577^2 .

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

It is an unprimeable number.

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, 18923 + ... + 19278.

Almost surely, 2^6799778 is an apocalyptic number.

6799778 is a deficient number, since it is larger than the sum of its proper divisors (3514762).

6799778 is a wasteful number, since it uses less digits than its factorization.

6799778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38292.

The product of its digits is 1333584, while the sum is 53.

The square root of 6799778 is about 2607.6383951768. The cubic root of 6799778 is about 189.4515857133.

The spelling of 6799778 in words is "six million, seven hundred ninety-nine thousand, seven hundred seventy-eight".