6820730 has 32 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 2318400.

The previous prime is 6820727. The next prime is 6820733. The reversal of 6820730 is 370286.

It is an interprime number because it is at equal distance from previous prime (6820727) and next prime (6820733).

It is a self number, because there is not a number n which added to its sum of digits gives 6820730.

It is not an unprimeable number, because it can be changed into a prime (6820733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9380 + ... + 10080.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^6820730 is an apocalyptic number.

6820730 is an abundant number, since it is smaller than the sum of its proper divisors (7331590).

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

6820730 is a wasteful number, since it uses less digits than its factorization.

6820730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 6820730 is about 2611.6527334238. The cubic root of 6820730 is about 189.6459704740.

The spelling of 6820730 in words is "six million, eight hundred twenty thousand, seven hundred thirty".