285863955 has 32 divisors (see below), whose sum is σ = 493683456. Its totient is φ = 140413824.

The previous prime is 285863951. The next prime is 285863969. The reversal of 285863955 is 559368582.

It is not a de Polignac number, because 285863955 - 2² = 285863951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285863898 and 285863907.

It is not an unprimeable number, because it can be changed into a prime (285863951) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 100584 + ... + 103386.

It is an arithmetic number, because the mean of its divisors is an integer number (15427608).

Almost surely, 2^285863955 is an apocalyptic number.

285863955 is a deficient number, since it is larger than the sum of its proper divisors (207819501).

285863955 is a wasteful number, since it uses less digits than its factorization.

285863955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its digits is 2592000, while the sum is 51.

The square root of 285863955 is about 16907.5117921000. The cubic root of 285863955 is about 658.7487427168.

The spelling of 285863955 in words is "two hundred eighty-five million, eight hundred sixty-three thousand, nine hundred fifty-five".