729087884 has 24 divisors (see below), whose sum is σ = 1505215488. Its totient is φ = 302386320.

The previous prime is 729087883. The next prime is 729087889. The reversal of 729087884 is 488780927.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (729087881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419114 + ... + 420849.

It is an arithmetic number, because the mean of its divisors is an integer number (62717312).

Almost surely, 2^729087884 is an apocalyptic number.

It is an amenable number.

729087884 is an abundant number, since it is smaller than the sum of its proper divisors (776127604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729087884 is a wasteful number, since it uses less digits than its factorization.

729087884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840005 (or 840003 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 729087884 is about 27001.6274324345. The cubic root of 729087884 is about 900.0361648019.

The spelling of 729087884 in words is "seven hundred twenty-nine million, eighty-seven thousand, eight hundred eighty-four".