285863099 has 2 divisors, whose sum is σ = 285863100. Its totient is φ = 285863098.

The previous prime is 285863093. The next prime is 285863101. The reversal of 285863099 is 990368582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285863099 is a prime.

It is a super-2 number, since 2×285863099² = 163435422739767602, which contains 22 as substring.

Together with 285863101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285863093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142931549 + 142931550.

It is an arithmetic number, because the mean of its divisors is an integer number (142931550).

Almost surely, 2^285863099 is an apocalyptic number.

285863099 is a deficient number, since it is larger than the sum of its proper divisors (1).

285863099 is an equidigital number, since it uses as much as digits as its factorization.

285863099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 285863099 is about 16907.4864778890. The cubic root of 285863099 is about 658.7480851902.

The spelling of 285863099 in words is "two hundred eighty-five million, eight hundred sixty-three thousand, ninety-nine".