728840711 has 8 divisors (see below), whose sum is σ = 772580880. Its totient is φ = 685196928.

The previous prime is 728840701. The next prime is 728840719. The reversal of 728840711 is 117048827.

728840711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 728840711 - 2⁶ = 728840647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728840719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 39053.

It is an arithmetic number, because the mean of its divisors is an integer number (96572610).

Almost surely, 2^728840711 is an apocalyptic number.

728840711 is a deficient number, since it is larger than the sum of its proper divisors (43740169).

728840711 is a wasteful number, since it uses less digits than its factorization.

728840711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48193.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 728840711 is about 26997.0500425509. The cubic root of 728840711 is about 899.9344441962.

The spelling of 728840711 in words is "seven hundred twenty-eight million, eight hundred forty thousand, seven hundred eleven".