6485729 has 2 divisors, whose sum is σ = 6485730. Its totient is φ = 6485728.

The previous prime is 6485719. The next prime is 6485741. The reversal of 6485729 is 9275846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 2096704 = 2095^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 6485729 - 2²⁰ = 5437153 is a prime.

It is a super-2 number, since 2×6485729² = 84129361322882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6485719) 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 as a sum of consecutive naturals, namely, 3242864 + 3242865.

It is an arithmetic number, because the mean of its divisors is an integer number (3242865).

Almost surely, 2^6485729 is an apocalyptic number.

It is an amenable number.

6485729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6485729 is an equidigital number, since it uses as much as digits as its factorization.

6485729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 6485729 is about 2546.7094455395. The cubic root of 6485729 is about 186.4888765656.

The spelling of 6485729 in words is "six million, four hundred eighty-five thousand, seven hundred twenty-nine".