6983778 has 16 divisors (see below), whose sum is σ = 14022720. Its totient is φ = 2318736.

The previous prime is 6983749. The next prime is 6983797. The reversal of 6983778 is 8773896.

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, 550 + ... + 3777.

It is an arithmetic number, because the mean of its divisors is an integer number (876420).

Almost surely, 2^6983778 is an apocalyptic number.

6983778 is an abundant number, since it is smaller than the sum of its proper divisors (7038942).

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

6983778 is a wasteful number, since it uses less digits than its factorization.

6983778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its digits is 508032, while the sum is 48.

The square root of 6983778 is about 2642.6838630453. The cubic root of 6983778 is about 191.1452346025.

Subtracting from 6983778 its product of digits (508032), we obtain a palindrome (6475746).

The spelling of 6983778 in words is "six million, nine hundred eighty-three thousand, seven hundred seventy-eight".