729856001 has 8 divisors (see below), whose sum is σ = 836163840. Its totient is φ = 624058848.

The previous prime is 729855989. The next prime is 729856007. The reversal of 729856001 is 100658927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 729856001 - 2⁶ = 729855937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (729856007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124601 + ... + 130326.

It is an arithmetic number, because the mean of its divisors is an integer number (104520480).

Almost surely, 2^729856001 is an apocalyptic number.

It is an amenable number.

729856001 is a deficient number, since it is larger than the sum of its proper divisors (106307839).

729856001 is a wasteful number, since it uses less digits than its factorization.

729856001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255343.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 729856001 is about 27015.8472197338. The cubic root of 729856001 is about 900.3521259984.

The spelling of 729856001 in words is "seven hundred twenty-nine million, eight hundred fifty-six thousand, one".