285979852 has 18 divisors (see below), whose sum is σ = 508426548. Its totient is φ = 140719392.

The previous prime is 285979847. The next prime is 285979877. The reversal of 285979852 is 258979582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 285979793 and 285979802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276328 + ... + 277360.

Almost surely, 2^285979852 is an apocalyptic number.

It is an amenable number.

285979852 is a deficient number, since it is larger than the sum of its proper divisors (222446696).

285979852 is an equidigital number, since it uses as much as digits as its factorization.

285979852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 1102 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The square root of 285979852 is about 16910.9388266885. The cubic root of 285979852 is about 658.8377555570.

The spelling of 285979852 in words is "two hundred eighty-five million, nine hundred seventy-nine thousand, eight hundred fifty-two".