729810872 has 16 divisors (see below), whose sum is σ = 1563880560. Its totient is φ = 312776064.

The previous prime is 729810869. The next prime is 729810883. The reversal of 729810872 is 278018927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6516113 + ... + 6516224.

It is an arithmetic number, because the mean of its divisors is an integer number (97742535).

Almost surely, 2^729810872 is an apocalyptic number.

It is an amenable number.

729810872 is an abundant number, since it is smaller than the sum of its proper divisors (834069688).

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

729810872 is a wasteful number, since it uses less digits than its factorization.

729810872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032350 (or 13032346 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 729810872 is about 27015.0119748261. The cubic root of 729810872 is about 900.3335685347. Note that the first 3 decimals are identical.

The spelling of 729810872 in words is "seven hundred twenty-nine million, eight hundred ten thousand, eight hundred seventy-two".