928939 has 4 divisors (see below), whose sum is σ = 1013400. Its totient is φ = 844480.

The previous prime is 928933. The next prime is 928979. The reversal of 928939 is 939829.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939829 = 11 ⋅85439.

It is a cyclic number.

It is not a de Polignac number, because 928939 - 2⁹ = 928427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (928933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42214 + ... + 42235.

It is an arithmetic number, because the mean of its divisors is an integer number (253350).

2⁹²⁸⁹³⁹ is an apocalyptic number.

928939 is a deficient number, since it is larger than the sum of its proper divisors (84461).

928939 is a wasteful number, since it uses less digits than its factorization.

928939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84460.

The product of its digits is 34992, while the sum is 40.

The square root of 928939 is about 963.8148162381. The cubic root of 928939 is about 97.5728668529.

The spelling of 928939 in words is "nine hundred twenty-eight thousand, nine hundred thirty-nine".