6820306 has 4 divisors (see below), whose sum is σ = 10230462. Its totient is φ = 3410152.

The previous prime is 6820291. The next prime is 6820339. The reversal of 6820306 is 6030286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6579225 + 241081 = 2565^2 + 491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705075 + ... + 1705078.

Almost surely, 2^6820306 is an apocalyptic number.

6820306 is a deficient number, since it is larger than the sum of its proper divisors (3410156).

6820306 is a wasteful number, since it uses less digits than its factorization.

6820306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410155.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6820306 is about 2611.5715575109. The cubic root of 6820306 is about 189.6420407110.

The spelling of 6820306 in words is "six million, eight hundred twenty thousand, three hundred six".