6820051 has 4 divisors (see below), whose sum is σ = 7794352. Its totient is φ = 5845752.

The previous prime is 6820039. The next prime is 6820057. The reversal of 6820051 is 1500286.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6820051 - 2⁵ = 6820019 is a prime.

It is a Duffinian number.

6820051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6820057) 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, 487140 + ... + 487153.

It is an arithmetic number, because the mean of its divisors is an integer number (1948588).

Almost surely, 2^6820051 is an apocalyptic number.

6820051 is a deficient number, since it is larger than the sum of its proper divisors (974301).

6820051 is an equidigital number, since it uses as much as digits as its factorization.

6820051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974300.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 6820051 is about 2611.5227358765. The cubic root of 6820051 is about 189.6396772138.

The spelling of 6820051 in words is "six million, eight hundred twenty thousand, fifty-one".