729530972 has 12 divisors (see below), whose sum is σ = 1276884000. Its totient is φ = 364706976.

The previous prime is 729530939. The next prime is 729530987. The reversal of 729530972 is 279035927.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25904 + ... + 46152.

It is an arithmetic number, because the mean of its divisors is an integer number (106407000).

Almost surely, 2^729530972 is an apocalyptic number.

It is an amenable number.

729530972 is a deficient number, since it is larger than the sum of its proper divisors (547353028).

729530972 is a wasteful number, since it uses less digits than its factorization.

729530972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29260 (or 29258 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 729530972 is about 27009.8310250175. The cubic root of 729530972 is about 900.2184539670.

The spelling of 729530972 in words is "seven hundred twenty-nine million, five hundred thirty thousand, nine hundred seventy-two".