6778494 has 12 divisors (see below), whose sum is σ = 14686776. Its totient is φ = 2259492.

The previous prime is 6778483. The next prime is 6778517. The reversal of 6778494 is 4948776.

It is a super-3 number, since 3×6778494³ (a number of 21 digits) contains 333 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188274 + ... + 188309.

It is an arithmetic number, because the mean of its divisors is an integer number (1223898).

Almost surely, 2^6778494 is an apocalyptic number.

6778494 is an abundant number, since it is smaller than the sum of its proper divisors (7908282).

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

6778494 is a wasteful number, since it uses less digits than its factorization.

6778494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376591 (or 376588 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 6778494 is about 2603.5541092898. The cubic root of 6778494 is about 189.2537115063.

The spelling of 6778494 in words is "six million, seven hundred seventy-eight thousand, four hundred ninety-four".