729836745 has 16 divisors (see below), whose sum is σ = 1273897152. Its totient is φ = 353860160.

The previous prime is 729836711. The next prime is 729836747. The reversal of 729836745 is 547638927.

It is not a de Polignac number, because 729836745 - 2⁸ = 729836489 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (729836747) 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 15 ways as a sum of consecutive naturals, for example, 2211462 + ... + 2211791.

It is an arithmetic number, because the mean of its divisors is an integer number (79618572).

Almost surely, 2^729836745 is an apocalyptic number.

It is an amenable number.

729836745 is a deficient number, since it is larger than the sum of its proper divisors (544060407).

729836745 is a wasteful number, since it uses less digits than its factorization.

729836745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423272.

The product of its digits is 2540160, while the sum is 51.

The square root of 729836745 is about 27015.4908339641. The cubic root of 729836745 is about 900.3442078460.

The spelling of 729836745 in words is "seven hundred twenty-nine million, eight hundred thirty-six thousand, seven hundred forty-five".