3166729 has 2 divisors, whose sum is σ = 3166730. Its totient is φ = 3166728.

The previous prime is 3166721. The next prime is 3166733. The reversal of 3166729 is 9276613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 139129 = 1740^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 3166729 - 2³ = 3166721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3166694 and 3166703.

It is not a weakly prime, because it can be changed into another prime (3166721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1583364 + 1583365.

It is an arithmetic number, because the mean of its divisors is an integer number (1583365).

Almost surely, 2^3166729 is an apocalyptic number.

It is an amenable number.

3166729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3166729 is an equidigital number, since it uses as much as digits as its factorization.

3166729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 3166729 is about 1779.5305560737. The cubic root of 3166729 is about 146.8487654365.

The spelling of 3166729 in words is "three million, one hundred sixty-six thousand, seven hundred twenty-nine".