729793 has 4 divisors (see below), whose sum is σ = 772740. Its totient is φ = 686848.

The previous prime is 729791. The next prime is 729821. The reversal of 729793 is 397927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397927 = 433 ⋅919.

It can be written as a sum of positive squares in 2 ways, for example, as 199809 + 529984 = 447^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 729793 - 2¹ = 729791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21448 + ... + 21481.

It is an arithmetic number, because the mean of its divisors is an integer number (193185).

2⁷²⁹⁷⁹³ is an apocalyptic number.

It is an amenable number.

729793 is a deficient number, since it is larger than the sum of its proper divisors (42947).

729793 is a wasteful number, since it uses less digits than its factorization.

729793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42946.

The product of its digits is 23814, while the sum is 37.

The square root of 729793 is about 854.2792283557. The cubic root of 729793 is about 90.0326219191.

The spelling of 729793 in words is "seven hundred twenty-nine thousand, seven hundred ninety-three".