729801 has 12 divisors (see below), whose sum is σ = 1063920. Its totient is φ = 482040.

The previous prime is 729791. The next prime is 729821. The reversal of 729801 is 108927.

It is not a de Polignac number, because 729801 - 2⁶ = 729737 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (729821) 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, 870 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (88660).

2⁷²⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

729801 is a deficient number, since it is larger than the sum of its proper divisors (334119).

729801 is a wasteful number, since it uses less digits than its factorization.

729801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 729801 is about 854.2839106527. The cubic root of 729801 is about 90.0329508975.

The spelling of 729801 in words is "seven hundred twenty-nine thousand, eight hundred one".