6820851 has 8 divisors (see below), whose sum is σ = 9111760. Its totient is φ = 4538592.

The previous prime is 6820841. The next prime is 6820873. The reversal of 6820851 is 1580286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6820851 - 2⁹ = 6820339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16 + ... + 3693.

It is an arithmetic number, because the mean of its divisors is an integer number (1138970).

Almost surely, 2^6820851 is an apocalyptic number.

6820851 is a deficient number, since it is larger than the sum of its proper divisors (2290909).

6820851 is a wasteful number, since it uses less digits than its factorization.

6820851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 6820851 is about 2611.6758987286. The cubic root of 6820851 is about 189.6470919095.

The spelling of 6820851 in words is "six million, eight hundred twenty thousand, eight hundred fifty-one".