1000285873 has 2 divisors, whose sum is σ = 1000285874. Its totient is φ = 1000285872.

The previous prime is 1000285829. The next prime is 1000285879. The reversal of 1000285873 is 3785820001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 779079744 + 221206129 = 27912^2 + 14873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000285873 - 2¹⁷ = 1000154801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000285879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500142936 + 500142937.

It is an arithmetic number, because the mean of its divisors is an integer number (500142937).

Almost surely, 2^1000285873 is an apocalyptic number.

It is an amenable number.

1000285873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000285873 is an equidigital number, since it uses as much as digits as its factorization.

1000285873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1000285873 is about 31627.2963276977. The cubic root of 1000285873 is about 1000.0952819211.

The spelling of 1000285873 in words is "one billion, two hundred eighty-five thousand, eight hundred seventy-three".