284642429 has 2 divisors, whose sum is σ = 284642430. Its totient is φ = 284642428.

The previous prime is 284642419. The next prime is 284642431. The reversal of 284642429 is 924246482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219839929 + 64802500 = 14827^2 + 8050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284642429 is a prime.

Together with 284642431, 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 (284642419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142321214 + 142321215.

It is an arithmetic number, because the mean of its divisors is an integer number (142321215).

Almost surely, 2^284642429 is an apocalyptic number.

It is an amenable number.

284642429 is a deficient number, since it is larger than the sum of its proper divisors (1).

284642429 is an equidigital number, since it uses as much as digits as its factorization.

284642429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 41.

The square root of 284642429 is about 16871.3493532675. The cubic root of 284642429 is about 657.8091027360.

The spelling of 284642429 in words is "two hundred eighty-four million, six hundred forty-two thousand, four hundred twenty-nine".