6821073 has 12 divisors (see below), whose sum is σ = 11260288. Its totient is φ = 3897720.

The previous prime is 6821021. The next prime is 6821077. The reversal of 6821073 is 3701286.

It is not a de Polignac number, because 6821073 - 2⁸ = 6820817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6821077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54073 + ... + 54198.

Almost surely, 2^6821073 is an apocalyptic number.

6821073 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6821073 is a deficient number, since it is larger than the sum of its proper divisors (4439215).

6821073 is a wasteful number, since it uses less digits than its factorization.

6821073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108284 (or 108281 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 6821073 is about 2611.7183998280. The cubic root of 6821073 is about 189.6491493849.

The spelling of 6821073 in words is "six million, eight hundred twenty-one thousand, seventy-three".