285642607 has 2 divisors, whose sum is σ = 285642608. Its totient is φ = 285642606.

The previous prime is 285642571. The next prime is 285642611. The reversal of 285642607 is 706246582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285642607 - 2¹⁹ = 285118319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285642607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285642647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142821303 + 142821304.

It is an arithmetic number, because the mean of its divisors is an integer number (142821304).

Almost surely, 2^285642607 is an apocalyptic number.

285642607 is a deficient number, since it is larger than the sum of its proper divisors (1).

285642607 is an equidigital number, since it uses as much as digits as its factorization.

285642607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 285642607 is about 16900.9646766094. The cubic root of 285642607 is about 658.5786730442.

The spelling of 285642607 in words is "two hundred eighty-five million, six hundred forty-two thousand, six hundred seven".