729409983 has 8 divisors (see below), whose sum is σ = 973921200. Its totient is φ = 485586048.

The previous prime is 729409969. The next prime is 729409987. The reversal of 729409983 is 389904927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 729409983 - 2⁵ = 729409951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729409987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169338 + ... + 173591.

It is an arithmetic number, because the mean of its divisors is an integer number (121740150).

Almost surely, 2^729409983 is an apocalyptic number.

729409983 is a deficient number, since it is larger than the sum of its proper divisors (244511217).

729409983 is a wasteful number, since it uses less digits than its factorization.

729409983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343641.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 729409983 is about 27007.5912106208. The cubic root of 729409983 is about 900.1686856655.

The spelling of 729409983 in words is "seven hundred twenty-nine million, four hundred nine thousand, nine hundred eighty-three".