285493207 has 2 divisors, whose sum is σ = 285493208. Its totient is φ = 285493206.

The previous prime is 285493157. The next prime is 285493217. The reversal of 285493207 is 702394582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285493207 - 2²⁷ = 151275479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285493207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285493217) 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, 142746603 + 142746604.

It is an arithmetic number, because the mean of its divisors is an integer number (142746604).

Almost surely, 2^285493207 is an apocalyptic number.

285493207 is a deficient number, since it is larger than the sum of its proper divisors (1).

285493207 is an equidigital number, since it uses as much as digits as its factorization.

285493207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 285493207 is about 16896.5442324755. The cubic root of 285493207 is about 658.4638339523.

The spelling of 285493207 in words is "two hundred eighty-five million, four hundred ninety-three thousand, two hundred seven".