285873106 has 4 divisors (see below), whose sum is σ = 428809662. Its totient is φ = 142936552.

The previous prime is 285873089. The next prime is 285873143. The reversal of 285873106 is 601378582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 282542481 + 3330625 = 16809^2 + 1825^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71468275 + ... + 71468278.

Almost surely, 2^285873106 is an apocalyptic number.

285873106 is a deficient number, since it is larger than the sum of its proper divisors (142936556).

285873106 is a wasteful number, since it uses less digits than its factorization.

285873106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142936555.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 285873106 is about 16907.7824092931. The cubic root of 285873106 is about 658.7557718710.

The spelling of 285873106 in words is "two hundred eighty-five million, eight hundred seventy-three thousand, one hundred six".