6778496 has 16 divisors (see below), whose sum is σ = 13504290. Its totient is φ = 3389184.

The previous prime is 6778483. The next prime is 6778517. The reversal of 6778496 is 6948776.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 18496 = 2600^2 + 136^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 6778496.

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 as a sum of consecutive naturals, namely, 26351 + ... + 26606.

Almost surely, 2^6778496 is an apocalyptic number.

It is an amenable number.

6778496 is a deficient number, since it is larger than the sum of its proper divisors (6725794).

6778496 is an equidigital number, since it uses as much as digits as its factorization.

6778496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52971 (or 52959 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 6778496 is about 2603.5544933802. The cubic root of 6778496 is about 189.2537301194.

The spelling of 6778496 in words is "six million, seven hundred seventy-eight thousand, four hundred ninety-six".