285718716 has 18 divisors (see below), whose sum is σ = 722233512. Its totient is φ = 95239560.

The previous prime is 285718681. The next prime is 285718721. The reversal of 285718716 is 617817582.

It is a happy number.

285718716 is a `hidden beast` number, since 2 + 8 + 571 + 8 + 71 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3968280 + ... + 3968351.

It is an arithmetic number, because the mean of its divisors is an integer number (40124084).

Almost surely, 2^285718716 is an apocalyptic number.

It is an amenable number.

285718716 is an abundant number, since it is smaller than the sum of its proper divisors (436514796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285718716 is a wasteful number, since it uses less digits than its factorization.

285718716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936641 (or 7936636 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 285718716 is about 16903.2161436811. The cubic root of 285718716 is about 658.6371602491.

The spelling of 285718716 in words is "two hundred eighty-five million, seven hundred eighteen thousand, seven hundred sixteen".