928321 has 4 divisors (see below), whose sum is σ = 977200. Its totient is φ = 879444.

The previous prime is 928313. The next prime is 928331. The reversal of 928321 is 123829.

928321 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 928321 - 2³ = 928313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (928331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24411 + ... + 24448.

It is an arithmetic number, because the mean of its divisors is an integer number (244300).

2⁹²⁸³²¹ is an apocalyptic number.

It is an amenable number.

928321 is a deficient number, since it is larger than the sum of its proper divisors (48879).

928321 is a wasteful number, since it uses less digits than its factorization.

928321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48878.

The product of its digits is 864, while the sum is 25.

The square root of 928321 is about 963.4941618920. The cubic root of 928321 is about 97.5512244527.

The spelling of 928321 in words is "nine hundred twenty-eight thousand, three hundred twenty-one".