285007 has 2 divisors, whose sum is σ = 285008. Its totient is φ = 285006.

The previous prime is 284989. The next prime is 285023. The reversal of 285007 is 700582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285007 - 2¹¹ = 282959 is a prime.

It is a Chen prime.

It is equal to p₂₄₈₄₄ and since 285007 and 24844 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142503 + 142504.

It is an arithmetic number, because the mean of its divisors is an integer number (142504).

2²⁸⁵⁰⁰⁷ is an apocalyptic number.

285007 is a deficient number, since it is larger than the sum of its proper divisors (1).

285007 is an equidigital number, since it uses as much as digits as its factorization.

285007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 285007 is about 533.8604686620. The cubic root of 285007 is about 65.8089824306.

Adding to 285007 its reverse (700582), we get a palindrome (985589).

The spelling of 285007 in words is "two hundred eighty-five thousand, seven".