285424943 has 2 divisors, whose sum is σ = 285424944. Its totient is φ = 285424942.

The previous prime is 285424939. The next prime is 285424999. The reversal of 285424943 is 349424582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285424943 - 2² = 285424939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285424943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285424933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142712471 + 142712472.

It is an arithmetic number, because the mean of its divisors is an integer number (142712472).

Almost surely, 2^285424943 is an apocalyptic number.

285424943 is a deficient number, since it is larger than the sum of its proper divisors (1).

285424943 is an equidigital number, since it uses as much as digits as its factorization.

285424943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 41.

The square root of 285424943 is about 16894.5240536690. The cubic root of 285424943 is about 658.4113482222.

The spelling of 285424943 in words is "two hundred eighty-five million, four hundred twenty-four thousand, nine hundred forty-three".