4163729 has 4 divisors (see below), whose sum is σ = 4170240. Its totient is φ = 4157220.

The previous prime is 4163723. The next prime is 4163741. The reversal of 4163729 is 9273614.

4163729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4163729 - 2²⁰ = 3115153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4163695 and 4163704.

It is not an unprimeable number, because it can be changed into a prime (4163723) 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, 2177 + ... + 3614.

It is an arithmetic number, because the mean of its divisors is an integer number (1042560).

Almost surely, 2^4163729 is an apocalyptic number.

It is an amenable number.

4163729 is a deficient number, since it is larger than the sum of its proper divisors (6511).

4163729 is an equidigital number, since it uses as much as digits as its factorization.

4163729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510.

The product of its digits is 9072, while the sum is 32.

The square root of 4163729 is about 2040.5217470049. The cubic root of 4163729 is about 160.8770713968.

The spelling of 4163729 in words is "four million, one hundred sixty-three thousand, seven hundred twenty-nine".