729052731 has 48 divisors (see below), whose sum is σ = 1196552448. Its totient is φ = 439927200.

The previous prime is 729052711. The next prime is 729052741. The reversal of 729052731 is 137250927.

It is not a de Polignac number, because 729052731 - 2⁷ = 729052603 is a prime.

It is a super-2 number, since 2×729052731² = 1063035769157116722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (729052711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830865 + ... + 831741.

It is an arithmetic number, because the mean of its divisors is an integer number (24928176).

Almost surely, 2^729052731 is an apocalyptic number.

729052731 is a deficient number, since it is larger than the sum of its proper divisors (467499717).

729052731 is a wasteful number, since it uses less digits than its factorization.

729052731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 729052731 is about 27000.9764823423. The cubic root of 729052731 is about 900.0216994768.

The spelling of 729052731 in words is "seven hundred twenty-nine million, fifty-two thousand, seven hundred thirty-one".