6820273 has 4 divisors (see below), whose sum is σ = 6978928. Its totient is φ = 6661620.

The previous prime is 6820267. The next prime is 6820277. The reversal of 6820273 is 3720286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3720286 = 2 ⋅1860143.

It is a cyclic number.

It is not a de Polignac number, because 6820273 - 2⁵ = 6820241 is a prime.

It is a super-2 number, since 2×6820273² = 93032247589058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79263 + ... + 79348.

It is an arithmetic number, because the mean of its divisors is an integer number (1744732).

Almost surely, 2^6820273 is an apocalyptic number.

It is an amenable number.

6820273 is a deficient number, since it is larger than the sum of its proper divisors (158655).

6820273 is a wasteful number, since it uses less digits than its factorization.

6820273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158654.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 6820273 is about 2611.5652394685. The cubic root of 6820273 is about 189.6417348500.

The spelling of 6820273 in words is "six million, eight hundred twenty thousand, two hundred seventy-three".