728067165 has 32 divisors (see below), whose sum is σ = 1332756480. Its totient is φ = 332472384.

The previous prime is 728067163. The next prime is 728067169. The reversal of 728067165 is 561760827.

It is not a de Polignac number, because 728067165 - 2¹ = 728067163 is a prime.

It is a super-2 number, since 2×728067165² = 1060163593502274450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728067163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110946 + ... + 117324.

It is an arithmetic number, because the mean of its divisors is an integer number (41648640).

Almost surely, 2^728067165 is an apocalyptic number.

It is an amenable number.

728067165 is a deficient number, since it is larger than the sum of its proper divisors (604689315).

728067165 is a wasteful number, since it uses less digits than its factorization.

728067165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 728067165 is about 26982.7197480165. The cubic root of 728067165 is about 899.6159534275.

The spelling of 728067165 in words is "seven hundred twenty-eight million, sixty-seven thousand, one hundred sixty-five".