729805854 has 8 divisors (see below), whose sum is σ = 1459611720. Its totient is φ = 243268616.

The previous prime is 729805841. The next prime is 729805883. The reversal of 729805854 is 458508927.

It is a sphenic number, since it is the product of 3 distinct primes.

729805854 is an admirable number.

It is a Curzon number.

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, 60817149 + ... + 60817160.

It is an arithmetic number, because the mean of its divisors is an integer number (182451465).

Almost surely, 2^729805854 is an apocalyptic number.

729805854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

729805854 is a wasteful number, since it uses less digits than its factorization.

729805854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121634314.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 729805854 is about 27014.9191003786. The cubic root of 729805854 is about 900.3315050393.

The spelling of 729805854 in words is "seven hundred twenty-nine million, eight hundred five thousand, eight hundred fifty-four".