6851029 has 4 divisors (see below), whose sum is σ = 6868684. Its totient is φ = 6833376.

The previous prime is 6851023. The next prime is 6851057. The reversal of 6851029 is 9201586.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2002225 + 4848804 = 1415^2 + 2202^2 .

It is a cyclic number.

It is not a de Polignac number, because 6851029 - 2⁵ = 6850997 is a prime.

It is a Duffinian number.

6851029 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6851023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8232 + ... + 9025.

It is an arithmetic number, because the mean of its divisors is an integer number (1717171).

Almost surely, 2^6851029 is an apocalyptic number.

It is an amenable number.

6851029 is a deficient number, since it is larger than the sum of its proper divisors (17655).

6851029 is a wasteful number, since it uses less digits than its factorization.

6851029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 6851029 is about 2617.4470386237. The cubic root of 6851029 is about 189.9263703624.

The spelling of 6851029 in words is "six million, eight hundred fifty-one thousand, twenty-nine".