285086986 has 8 divisors (see below), whose sum is σ = 428211360. Its totient is φ = 142349868.

The previous prime is 285086969. The next prime is 285086987. The reversal of 285086986 is 689680582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (285086987) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 94966 + ... + 97921.

It is an arithmetic number, because the mean of its divisors is an integer number (53526420).

Almost surely, 2^285086986 is an apocalyptic number.

285086986 is a deficient number, since it is larger than the sum of its proper divisors (143124374).

285086986 is a wasteful number, since it uses less digits than its factorization.

285086986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193628.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The square root of 285086986 is about 16884.5191225572. The cubic root of 285086986 is about 658.1513819158.

The spelling of 285086986 in words is "two hundred eighty-five million, eighty-six thousand, nine hundred eighty-six".