6870829 has 6 divisors (see below), whose sum is σ = 7992654. Its totient is φ = 5889240.

The previous prime is 6870817. The next prime is 6870847. The reversal of 6870829 is 9280786.

It can be written as a sum of positive squares in only one way, i.e., 5175625 + 1695204 = 2275^2 + 1302^2 .

It is not a de Polignac number, because 6870829 - 2⁵ = 6870797 is a prime.

It is a super-2 number, since 2×6870829² = 94416582294482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6870791 and 6870800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6870869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70062 + ... + 70159.

It is an arithmetic number, because the mean of its divisors is an integer number (1332109).

Almost surely, 2^6870829 is an apocalyptic number.

It is an amenable number.

6870829 is a deficient number, since it is larger than the sum of its proper divisors (1121825).

6870829 is a wasteful number, since it uses less digits than its factorization.

6870829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140235 (or 140228 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6870829 is about 2621.2266212596. The cubic root of 6870829 is about 190.1091616475.

The spelling of 6870829 in words is "six million, eight hundred seventy thousand, eight hundred twenty-nine".