282748391 has 2 divisors, whose sum is σ = 282748392. Its totient is φ = 282748390.

The previous prime is 282748363. The next prime is 282748393. The reversal of 282748391 is 193847282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 282748391 - 2⁶ = 282748327 is a prime.

It is a super-2 number, since 2×282748391² = 159893305226177762, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 282748393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282748393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141374195 + 141374196.

It is an arithmetic number, because the mean of its divisors is an integer number (141374196).

Almost surely, 2^282748391 is an apocalyptic number.

282748391 is a deficient number, since it is larger than the sum of its proper divisors (1).

282748391 is an equidigital number, since it uses as much as digits as its factorization.

282748391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 282748391 is about 16815.1238770340. The cubic root of 282748391 is about 656.3468129158.

The spelling of 282748391 in words is "two hundred eighty-two million, seven hundred forty-eight thousand, three hundred ninety-one".