729489023 has 8 divisors (see below), whose sum is σ = 790363728. Its totient is φ = 670610304.

The previous prime is 729488971. The next prime is 729489041. The reversal of 729489023 is 320984927.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729489023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729489043) 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, 498236 + ... + 499697.

It is an arithmetic number, because the mean of its divisors is an integer number (98795466).

Almost surely, 2^729489023 is an apocalyptic number.

729489023 is a deficient number, since it is larger than the sum of its proper divisors (60874705).

729489023 is a wasteful number, since it uses less digits than its factorization.

729489023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997993.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 729489023 is about 27009.0544632721. The cubic root of 729489023 is about 900.2011990506.

The spelling of 729489023 in words is "seven hundred twenty-nine million, four hundred eighty-nine thousand, twenty-three".