729741223 has 4 divisors (see below), whose sum is σ = 745267680. Its totient is φ = 714214768.

The previous prime is 729741197. The next prime is 729741251. The reversal of 729741223 is 322147927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322147927 = 14029 ⋅22963.

It is a cyclic number.

It is not a de Polignac number, because 729741223 - 2¹³ = 729733031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729745223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7763158 + ... + 7763251.

It is an arithmetic number, because the mean of its divisors is an integer number (186316920).

Almost surely, 2^729741223 is an apocalyptic number.

729741223 is a deficient number, since it is larger than the sum of its proper divisors (15526457).

729741223 is a wasteful number, since it uses less digits than its factorization.

729741223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15526456.

The product of its digits is 42336, while the sum is 37.

The square root of 729741223 is about 27013.7228644998. The cubic root of 729741223 is about 900.3049267180.

The spelling of 729741223 in words is "seven hundred twenty-nine million, seven hundred forty-one thousand, two hundred twenty-three".