729004 has 12 divisors (see below), whose sum is σ = 1297800. Its totient is φ = 358208.

The previous prime is 728993. The next prime is 729019. The reversal of 729004 is 400927.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309 + ... + 1780.

It is an arithmetic number, because the mean of its divisors is an integer number (108150).

729004 is a Friedman number, since it can be written as 90^(7^0+2)+4, using all its digits and the basic arithmetic operations.

2⁷²⁹⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

729004 is a deficient number, since it is larger than the sum of its proper divisors (568796).

729004 is a wasteful number, since it uses less digits than its factorization.

729004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 729004 is about 853.8173106701. The cubic root of 729004 is about 90.0001646088. Note that the first 3 decimals are identical.

It can be divided in two parts, 72900 and 4, that multiplied together give a square (291600 = 540²).

The spelling of 729004 in words is "seven hundred twenty-nine thousand, four".