928839 has 8 divisors (see below), whose sum is σ = 1243120. Its totient is φ = 616896.

The previous prime is 928819. The next prime is 928849. The reversal of 928839 is 938829.

928839 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 not a de Polignac number, because 928839 - 2¹² = 924743 is a prime.

It is a Duffinian number.

928839 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 928797 and 928806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928819) 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, 849 + ... + 1605.

It is an arithmetic number, because the mean of its divisors is an integer number (155390).

2⁹²⁸⁸³⁹ is an apocalyptic number.

928839 is a deficient number, since it is larger than the sum of its proper divisors (314281).

928839 is a wasteful number, since it uses less digits than its factorization.

928839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its digits is 31104, while the sum is 39.

The square root of 928839 is about 963.7629376564. The cubic root of 928839 is about 97.5693654975.

The spelling of 928839 in words is "nine hundred twenty-eight thousand, eight hundred thirty-nine".