282391 has 2 divisors, whose sum is σ = 282392. Its totient is φ = 282390.

The previous prime is 282389. The next prime is 282407. The reversal of 282391 is 193282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 282391 - 2¹ = 282389 is a prime.

Together with 282389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141195 + 141196.

It is an arithmetic number, because the mean of its divisors is an integer number (141196).

2²⁸²³⁹¹ is an apocalyptic number.

282391 is a deficient number, since it is larger than the sum of its proper divisors (1).

282391 is an equidigital number, since it uses as much as digits as its factorization.

282391 is an evil number, because the sum of its binary digits is even.

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

The square root of 282391 is about 531.4047421693. The cubic root of 282391 is about 65.6070157825.

The spelling of 282391 in words is "two hundred eighty-two thousand, three hundred ninety-one".