928281 has 8 divisors (see below), whose sum is σ = 1268064. Its totient is φ = 603680.

The previous prime is 928273. The next prime is 928289. The reversal of 928281 is 182829.

It is an interprime number because it is at equal distance from previous prime (928273) and next prime (928289).

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

It is a cyclic number.

It is not a de Polignac number, because 928281 - 2³ = 928273 is a prime.

It is a super-2 number, since 2×928281² = 1723411229922, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 928281.

It is not an unprimeable number, because it can be changed into a prime (928289) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 3896.

It is an arithmetic number, because the mean of its divisors is an integer number (158508).

2⁹²⁸²⁸¹ is an apocalyptic number.

It is an amenable number.

928281 is a deficient number, since it is larger than the sum of its proper divisors (339783).

928281 is a wasteful number, since it uses less digits than its factorization.

928281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591.

The product of its digits is 2304, while the sum is 30.

The square root of 928281 is about 963.4734038882. The cubic root of 928281 is about 97.5498233192.

It can be divided in two parts, 92828 and 1, that added together give a palindrome (92829).

The spelling of 928281 in words is "nine hundred twenty-eight thousand, two hundred eighty-one".