729074 has 4 divisors (see below), whose sum is σ = 1093614. Its totient is φ = 364536.

The previous prime is 729073. The next prime is 729139. The reversal of 729074 is 470927.

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

It can be written as a sum of positive squares in only one way, i.e., 573049 + 156025 = 757^2 + 395^2 .

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

It is not an unprimeable number, because it can be changed into a prime (729073) 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 as a sum of consecutive naturals, namely, 182267 + ... + 182270.

2⁷²⁹⁰⁷⁴ is an apocalyptic number.

729074 is a deficient number, since it is larger than the sum of its proper divisors (364540).

729074 is a wasteful number, since it uses less digits than its factorization.

729074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364539.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 729074 is about 853.8583020619. The cubic root of 729074 is about 90.0030451645.

The spelling of 729074 in words is "seven hundred twenty-nine thousand, seventy-four".