1000285863 has 16 divisors (see below), whose sum is σ = 1352648160. Its totient is φ = 657434624.

The previous prime is 1000285829. The next prime is 1000285873. The reversal of 1000285863 is 3685820001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1000285863 - 2¹² = 1000281767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000285873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88945 + ... + 99557.

It is an arithmetic number, because the mean of its divisors is an integer number (84540510).

Almost surely, 2^1000285863 is an apocalyptic number.

1000285863 is a deficient number, since it is larger than the sum of its proper divisors (352362297).

1000285863 is a wasteful number, since it uses less digits than its factorization.

1000285863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1000285863 is about 31627.2961696064. The cubic root of 1000285863 is about 1000.0952785884.

The spelling of 1000285863 in words is "one billion, two hundred eighty-five thousand, eight hundred sixty-three".