6778344 has 32 divisors (see below), whose sum is σ = 17532000. Its totient is φ = 2181312.

The previous prime is 6778339. The next prime is 6778351. The reversal of 6778344 is 4438776.

6778344 = T₂₃₂ + T₂₃₃ + ... + T₃₇₅.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4174 + ... + 5565.

It is an arithmetic number, because the mean of its divisors is an integer number (547875).

Almost surely, 2^6778344 is an apocalyptic number.

6778344 is the 1392-nd nonagonal number.

It is an amenable number.

6778344 is an abundant number, since it is smaller than the sum of its proper divisors (10753656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6778344 is a wasteful number, since it uses less digits than its factorization.

6778344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777 (or 9773 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 6778344 is about 2603.5253023545. The cubic root of 6778344 is about 189.2523155095.

The spelling of 6778344 in words is "six million, seven hundred seventy-eight thousand, three hundred forty-four".