282732421 has 2 divisors, whose sum is σ = 282732422. Its totient is φ = 282732420.

The previous prime is 282732367. The next prime is 282732449. The reversal of 282732421 is 124237282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159744321 + 122988100 = 12639^2 + 11090^2 .

It is a cyclic number.

It is not a de Polignac number, because 282732421 - 2¹⁵ = 282699653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282732451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141366210 + 141366211.

It is an arithmetic number, because the mean of its divisors is an integer number (141366211).

Almost surely, 2^282732421 is an apocalyptic number.

It is an amenable number.

282732421 is a deficient number, since it is larger than the sum of its proper divisors (1).

282732421 is an equidigital number, since it uses as much as digits as its factorization.

282732421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

The square root of 282732421 is about 16814.6490002022. The cubic root of 282732421 is about 656.3344555735.

The spelling of 282732421 in words is "two hundred eighty-two million, seven hundred thirty-two thousand, four hundred twenty-one".