928705 has 8 divisors (see below), whose sum is σ = 1120104. Its totient is φ = 739200.

The previous prime is 928703. The next prime is 928769. The reversal of 928705 is 507829.

928705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 659344 = 519^2 + 812^2 .

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

It is not a de Polignac number, because 928705 - 2¹ = 928703 is a prime.

It is a Duffinian number.

928705 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928703) 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, 1075 + ... + 1735.

It is an arithmetic number, because the mean of its divisors is an integer number (140013).

2⁹²⁸⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

928705 is a deficient number, since it is larger than the sum of its proper divisors (191399).

928705 is a wasteful number, since it uses less digits than its factorization.

928705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 928705 is about 963.6934159783. The cubic root of 928705 is about 97.5646732872.

The spelling of 928705 in words is "nine hundred twenty-eight thousand, seven hundred five".