285424933 has 2 divisors, whose sum is σ = 285424934. Its totient is φ = 285424932.

The previous prime is 285424823. The next prime is 285424939. The reversal of 285424933 is 339424582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281669089 + 3755844 = 16783^2 + 1938^2 .

It is a cyclic number.

It is not a de Polignac number, because 285424933 - 2⁹ = 285424421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285424939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142712466 + 142712467.

It is an arithmetic number, because the mean of its divisors is an integer number (142712467).

Almost surely, 2^285424933 is an apocalyptic number.

It is an amenable number.

285424933 is a deficient number, since it is larger than the sum of its proper divisors (1).

285424933 is an equidigital number, since it uses as much as digits as its factorization.

285424933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 285424933 is about 16894.5237577151. The cubic root of 285424933 is about 658.4113405330.

The spelling of 285424933 in words is "two hundred eighty-five million, four hundred twenty-four thousand, nine hundred thirty-three".