9162729 has 9 divisors (see below), whose sum is σ = 13248183. Its totient is φ = 6102432.

The previous prime is 9162709. The next prime is 9162737. The reversal of 9162729 is 9272619.

The square root of 9162729 is 3027.

It is a perfect power (a square), and thus also a powerful number.

9162729 is a `hidden beast` number, since 9 + 1 + 627 + 29 = 666.

9162729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2812329 + 6350400 = 1677^2 + 2520^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 9162729 - 2¹⁷ = 9031657 is a prime.

It is an Ulam number.

9162729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9162693 and 9162702.

It is not an unprimeable number, because it can be changed into a prime (9162709) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8577 + ... + 9585.

Almost surely, 2^9162729 is an apocalyptic number.

9162729 is the 3027-th square number.

9162729 is the 1514-th centered octagonal number.

It is an amenable number.

9162729 is a deficient number, since it is larger than the sum of its proper divisors (4085454).

9162729 is an equidigital number, since it uses as much as digits as its factorization.

9162729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 1012 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The cubic root of 9162729 is about 209.2545679728.

Multiplying 9162729 by its sum of digits (36), we get a square (329858244 = 18162²).

The spelling of 9162729 in words is "nine million, one hundred sixty-two thousand, seven hundred twenty-nine".