6862820 has 12 divisors (see below), whose sum is σ = 14411964. Its totient is φ = 2745120.

The previous prime is 6862783. The next prime is 6862831. The reversal of 6862820 is 282686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1737124 + 5125696 = 1318^2 + 2264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171551 + ... + 171590.

It is an arithmetic number, because the mean of its divisors is an integer number (1200997).

Almost surely, 2^6862820 is an apocalyptic number.

It is an amenable number.

6862820 is an abundant number, since it is smaller than the sum of its proper divisors (7549144).

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

6862820 is a wasteful number, since it uses less digits than its factorization.

6862820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343150 (or 343148 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 6862820 is about 2619.6984559296. The cubic root of 6862820 is about 190.0352658454.

The spelling of 6862820 in words is "six million, eight hundred sixty-two thousand, eight hundred twenty".