6872329 has 2 divisors, whose sum is σ = 6872330. Its totient is φ = 6872328.

The previous prime is 6872311. The next prime is 6872363. The reversal of 6872329 is 9232786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 3337929 = 1880^2 + 1827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6872329 is a prime.

It is an Ulam number.

6872329 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6872629) 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 as a sum of consecutive naturals, namely, 3436164 + 3436165.

It is an arithmetic number, because the mean of its divisors is an integer number (3436165).

Almost surely, 2^6872329 is an apocalyptic number.

It is an amenable number.

6872329 is a deficient number, since it is larger than the sum of its proper divisors (1).

6872329 is an equidigital number, since it uses as much as digits as its factorization.

6872329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 6872329 is about 2621.5127312298. The cubic root of 6872329 is about 190.1229951550.

It can be divided in two parts, 687232 and 9, that added together give a square (687241 = 829²).

The spelling of 6872329 in words is "six million, eight hundred seventy-two thousand, three hundred twenty-nine".