729958 has 4 divisors (see below), whose sum is σ = 1094940. Its totient is φ = 364978.

The previous prime is 729947. The next prime is 729977. The reversal of 729958 is 859927.

729958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 729958.

It is a congruent number.

It is an unprimeable number.

729958 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182488 + ... + 182491.

It is an arithmetic number, because the mean of its divisors is an integer number (273735).

2⁷²⁹⁹⁵⁸ is an apocalyptic number.

729958 is a deficient number, since it is larger than the sum of its proper divisors (364982).

729958 is a wasteful number, since it uses less digits than its factorization.

729958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364981.

The product of its digits is 45360, while the sum is 40.

The square root of 729958 is about 854.3757955373. The cubic root of 729958 is about 90.0394066116.

The spelling of 729958 in words is "seven hundred twenty-nine thousand, nine hundred fifty-eight".