729163233 has 12 divisors (see below), whose sum is σ = 1054448148. Its totient is φ = 485549280.

The previous prime is 729163223. The next prime is 729163277. The reversal of 729163233 is 332361927.

It can be written as a sum of positive squares in 2 ways, for example, as 556582464 + 172580769 = 23592^2 + 13137^2 .

It is not a de Polignac number, because 729163233 - 2²⁵ = 695608801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729163213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38298 + ... + 54083.

It is an arithmetic number, because the mean of its divisors is an integer number (87870679).

Almost surely, 2^729163233 is an apocalyptic number.

It is an amenable number.

729163233 is a deficient number, since it is larger than the sum of its proper divisors (325284915).

729163233 is a wasteful number, since it uses less digits than its factorization.

729163233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93264 (or 93261 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 729163233 is about 27003.0226641389. The cubic root of 729163233 is about 900.0671690610.

The spelling of 729163233 in words is "seven hundred twenty-nine million, one hundred sixty-three thousand, two hundred thirty-three".