6812320 has 24 divisors (see below), whose sum is σ = 16094484. Its totient is φ = 2724864.

The previous prime is 6812233. The next prime is 6812339. The reversal of 6812320 is 232186.

It can be written as a sum of positive squares in 2 ways, for example, as 6615184 + 197136 = 2572^2 + 444^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6812291 and 6812300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21129 + ... + 21448.

Almost surely, 2^6812320 is an apocalyptic number.

It is an amenable number.

6812320 is an abundant number, since it is smaller than the sum of its proper divisors (9282164).

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

6812320 is a wasteful number, since it uses less digits than its factorization.

6812320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42592 (or 42584 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6812320 is about 2610.0421452536. The cubic root of 6812320 is about 189.5679935528.

The spelling of 6812320 in words is "six million, eight hundred twelve thousand, three hundred twenty".