285943066 has 4 divisors (see below), whose sum is σ = 428914602. Its totient is φ = 142971532.

The previous prime is 285943037. The next prime is 285943081. The reversal of 285943066 is 660349582.

285943066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 164480625 + 121462441 = 12825^2 + 11021^2 .

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, 71485765 + ... + 71485768.

Almost surely, 2^285943066 is an apocalyptic number.

285943066 is a deficient number, since it is larger than the sum of its proper divisors (142971536).

285943066 is a wasteful number, since it uses less digits than its factorization.

285943066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142971535.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 285943066 is about 16909.8511525087. The cubic root of 285943066 is about 658.8095052628.

The spelling of 285943066 in words is "two hundred eighty-five million, nine hundred forty-three thousand, sixty-six".