3165729 has 16 divisors (see below), whose sum is σ = 4866048. Its totient is φ = 1793232.

The previous prime is 3165713. The next prime is 3165739. The reversal of 3165729 is 9275613.

It is not a de Polignac number, because 3165729 - 2⁴ = 3165713 is a prime.

3165729 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3165729.

It is not an unprimeable number, because it can be changed into a prime (3165709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2074 + ... + 3260.

It is an arithmetic number, because the mean of its divisors is an integer number (304128).

Almost surely, 2^3165729 is an apocalyptic number.

It is an amenable number.

3165729 is a deficient number, since it is larger than the sum of its proper divisors (1700319).

3165729 is a wasteful number, since it uses less digits than its factorization.

3165729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its digits is 11340, while the sum is 33.

The square root of 3165729 is about 1779.2495609104. The cubic root of 3165729 is about 146.8333063487.

The spelling of 3165729 in words is "three million, one hundred sixty-five thousand, seven hundred twenty-nine".