285868086 has 16 divisors (see below), whose sum is σ = 653412864. Its totient is φ = 81676584.

The previous prime is 285868067. The next prime is 285868097. The reversal of 285868086 is 680868582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3403150 + ... + 3403233.

It is an arithmetic number, because the mean of its divisors is an integer number (40838304).

Almost surely, 2^285868086 is an apocalyptic number.

285868086 is an abundant number, since it is smaller than the sum of its proper divisors (367544778).

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

285868086 is a wasteful number, since it uses less digits than its factorization.

285868086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806395.

The product of its (nonzero) digits is 1474560, while the sum is 51.

The square root of 285868086 is about 16907.6339562932. The cubic root of 285868086 is about 658.7519158789.

The spelling of 285868086 in words is "two hundred eighty-five million, eight hundred sixty-eight thousand, eighty-six".