923281 has 4 divisors (see below), whose sum is σ = 928564. Its totient is φ = 918000.

The previous prime is 923249. The next prime is 923309. The reversal of 923281 is 182329.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3600 + 919681 = 60^2 + 959^2 .

It is a cyclic number.

It is not a de Polignac number, because 923281 - 2⁵ = 923249 is a prime.

It is a super-2 number, since 2×923281² = 1704895609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (923201) 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, 2370 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (232141).

2⁹²³²⁸¹ is an apocalyptic number.

It is an amenable number.

923281 is a deficient number, since it is larger than the sum of its proper divisors (5283).

923281 is a wasteful number, since it uses less digits than its factorization.

923281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282.

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

The square root of 923281 is about 960.8751219591. The cubic root of 923281 is about 97.3743637089.

It can be divided in two parts, 92328 and 1, that added together give a palindrome (92329).

The spelling of 923281 in words is "nine hundred twenty-three thousand, two hundred eighty-one".