729872133 has 16 divisors (see below), whose sum is σ = 1023238656. Its totient is φ = 461867120.

The previous prime is 729872131. The next prime is 729872147. The reversal of 729872133 is 331278927.

It is a cyclic number.

It is not a de Polignac number, because 729872133 - 2¹ = 729872131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729872131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31335 + ... + 49412.

It is an arithmetic number, because the mean of its divisors is an integer number (63952416).

Almost surely, 2^729872133 is an apocalyptic number.

It is an amenable number.

729872133 is a deficient number, since it is larger than the sum of its proper divisors (293366523).

729872133 is a wasteful number, since it uses less digits than its factorization.

729872133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80904.

The product of its digits is 127008, while the sum is 42.

The square root of 729872133 is about 27016.1457835865. The cubic root of 729872133 is about 900.3587594409.

The spelling of 729872133 in words is "seven hundred twenty-nine million, eight hundred seventy-two thousand, one hundred thirty-three".