729327612 has 72 divisors (see below), whose sum is σ = 1906435440. Its totient is φ = 216652800.

The previous prime is 729327593. The next prime is 729327617. The reversal of 729327612 is 216723927.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729327617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52612 + ... + 65012.

It is an arithmetic number, because the mean of its divisors is an integer number (26478270).

Almost surely, 2^729327612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 729327612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953217720).

729327612 is an abundant number, since it is smaller than the sum of its proper divisors (1177107828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729327612 is a wasteful number, since it uses less digits than its factorization.

729327612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12463 (or 12448 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 729327612 is about 27006.0662074283. The cubic root of 729327612 is about 900.1347995622.

The spelling of 729327612 in words is "seven hundred twenty-nine million, three hundred twenty-seven thousand, six hundred twelve".