729435604 has 6 divisors (see below), whose sum is σ = 1276512314. Its totient is φ = 364717800.

The previous prime is 729435601. The next prime is 729435607. The reversal of 729435604 is 406534927.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (729435601) and next prime (729435607).

It can be written as a sum of positive squares in only one way, i.e., 725224900 + 4210704 = 26930^2 + 2052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729435601) 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 as a sum of consecutive naturals, namely, 91179447 + ... + 91179454.

Almost surely, 2^729435604 is an apocalyptic number.

It is an amenable number.

729435604 is a deficient number, since it is larger than the sum of its proper divisors (547076710).

729435604 is a wasteful number, since it uses less digits than its factorization.

729435604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182358905 (or 182358903 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 729435604 is about 27008.0655360579. The cubic root of 729435604 is about 900.1792252122.

The spelling of 729435604 in words is "seven hundred twenty-nine million, four hundred thirty-five thousand, six hundred four".