6780836 has 6 divisors (see below), whose sum is σ = 11866470. Its totient is φ = 3390416.

The previous prime is 6780833. The next prime is 6780857. The reversal of 6780836 is 6380876.

It can be written as a sum of positive squares in only one way, i.e., 6150400 + 630436 = 2480^2 + 794^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6780836.

It is not an unprimeable number, because it can be changed into a prime (6780833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847601 + ... + 847608.

It is an arithmetic number, because the mean of its divisors is an integer number (1977745).

Almost surely, 2^6780836 is an apocalyptic number.

It is an amenable number.

6780836 is a deficient number, since it is larger than the sum of its proper divisors (5085634).

6780836 is a wasteful number, since it uses less digits than its factorization.

6780836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695213 (or 1695211 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 6780836 is about 2604.0038402429. The cubic root of 6780836 is about 189.2755049979.

The spelling of 6780836 in words is "six million, seven hundred eighty thousand, eight hundred thirty-six".