282961 has 4 divisors (see below), whose sum is σ = 323392. Its totient is φ = 242532.

The previous prime is 282959. The next prime is 282973. The reversal of 282961 is 169282.

It is a happy number.

282961 is nontrivially palindromic in base 6.

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 282961 - 2¹ = 282959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20205 + ... + 20218.

It is an arithmetic number, because the mean of its divisors is an integer number (80848).

2²⁸²⁹⁶¹ is an apocalyptic number.

It is an amenable number.

282961 is a deficient number, since it is larger than the sum of its proper divisors (40431).

282961 is an equidigital number, since it uses as much as digits as its factorization.

282961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40430.

The product of its digits is 1728, while the sum is 28.

The square root of 282961 is about 531.9407861783. The cubic root of 282961 is about 65.6511282202.

The spelling of 282961 in words is "two hundred eighty-two thousand, nine hundred sixty-one".