729886031 has 12 divisors (see below), whose sum is σ = 838686672. Its totient is φ = 622236384.

The previous prime is 729886021. The next prime is 729886057. The reversal of 729886031 is 130688927.

729886031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 729886031 - 2²² = 725691727 is a prime.

It is a super-2 number, since 2×729886031² = 1065467236497865922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729886021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275891 + ... + 278523.

It is an arithmetic number, because the mean of its divisors is an integer number (69890556).

Almost surely, 2^729886031 is an apocalyptic number.

729886031 is a deficient number, since it is larger than the sum of its proper divisors (108800641).

729886031 is an equidigital number, since it uses as much as digits as its factorization.

729886031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 729886031 is about 27016.4029989190. The cubic root of 729886031 is about 900.3644741892.

The spelling of 729886031 in words is "seven hundred twenty-nine million, eight hundred eighty-six thousand, thirty-one".