729285873 has 32 divisors (see below), whose sum is σ = 1113114240. Its totient is φ = 421770240.

The previous prime is 729285871. The next prime is 729285913. The reversal of 729285873 is 378582927.

It is not a de Polignac number, because 729285873 - 2¹ = 729285871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (729285871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25683 + ... + 46023.

It is an arithmetic number, because the mean of its divisors is an integer number (34784820).

Almost surely, 2^729285873 is an apocalyptic number.

It is an amenable number.

729285873 is a deficient number, since it is larger than the sum of its proper divisors (383828367).

729285873 is a wasteful number, since it uses less digits than its factorization.

729285873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20417.

The product of its digits is 1693440, while the sum is 51.

The square root of 729285873 is about 27005.2934255490. The cubic root of 729285873 is about 900.1176278355.

The spelling of 729285873 in words is "seven hundred twenty-nine million, two hundred eighty-five thousand, eight hundred seventy-three".