285769864 has 16 divisors (see below), whose sum is σ = 567337500. Its totient is φ = 134479872.

The previous prime is 285769853. The next prime is 285769867. The reversal of 285769864 is 468967582.

285769864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 245548900 + 40220964 = 15670^2 + 6342^2 .

It is not an unprimeable number, because it can be changed into a prime (285769867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050489 + ... + 1050760.

Almost surely, 2^285769864 is an apocalyptic number.

It is an amenable number.

285769864 is a deficient number, since it is larger than the sum of its proper divisors (281567636).

285769864 is a wasteful number, since it uses less digits than its factorization.

285769864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101272 (or 2101268 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The square root of 285769864 is about 16904.7290424899. The cubic root of 285769864 is about 658.6764599304.

The spelling of 285769864 in words is "two hundred eighty-five million, seven hundred sixty-nine thousand, eight hundred sixty-four".