729432099 has 36 divisors (see below), whose sum is σ = 1190545512. Its totient is φ = 426787200.

The previous prime is 729432079. The next prime is 729432101. The reversal of 729432099 is 990234927.

It is not a de Polignac number, because 729432099 - 2¹⁶ = 729366563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729432019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78879 + ... + 87639.

Almost surely, 2^729432099 is an apocalyptic number.

729432099 is a deficient number, since it is larger than the sum of its proper divisors (461113413).

729432099 is a wasteful number, since it uses less digits than its factorization.

729432099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8836 (or 8804 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 729432099 is about 27008.0006479562. Note that the first 3 decimals coincide. The cubic root of 729432099 is about 900.1777833974.

It can be divided in two parts, 7294 and 32099, that added together give a palindrome (39393).

The spelling of 729432099 in words is "seven hundred twenty-nine million, four hundred thirty-two thousand, ninety-nine".