729427628 has 12 divisors (see below), whose sum is σ = 1277432352. Its totient is φ = 364446960.

The previous prime is 729427627. The next prime is 729427631. The reversal of 729427628 is 826724927.

It is not an unprimeable number, because it can be changed into a prime (729427627) by changing a digit.

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, 60500 + ... + 71547.

It is an arithmetic number, because the mean of its divisors is an integer number (106452696).

Almost surely, 2^729427628 is an apocalyptic number.

It is an amenable number.

729427628 is a deficient number, since it is larger than the sum of its proper divisors (548004724).

729427628 is a wasteful number, since it uses less digits than its factorization.

729427628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133432 (or 133430 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 729427628 is about 27007.9178760600. The cubic root of 729427628 is about 900.1759442026.

The spelling of 729427628 in words is "seven hundred twenty-nine million, four hundred twenty-seven thousand, six hundred twenty-eight".