6780394 has 16 divisors (see below), whose sum is σ = 10434600. Its totient is φ = 3303360.

The previous prime is 6780383. The next prime is 6780407. The reversal of 6780394 is 4930876.

It can be written as a sum of positive squares in 4 ways, for example, as 2679769 + 4100625 = 1637^2 + 2025^2 .

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, 17992 + ... + 18364.

Almost surely, 2^6780394 is an apocalyptic number.

6780394 is a deficient number, since it is larger than the sum of its proper divisors (3654206).

6780394 is a wasteful number, since it uses less digits than its factorization.

6780394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 6780394 is about 2603.9189695534. The cubic root of 6780394 is about 189.2713923491.

The spelling of 6780394 in words is "six million, seven hundred eighty thousand, three hundred ninety-four".