285364879 has 12 divisors (see below), whose sum is σ = 298106568. Its totient is φ = 273066560.

The previous prime is 285364861. The next prime is 285364903. The reversal of 285364879 is 978463582.

It is not a de Polignac number, because 285364879 - 2²¹ = 283267727 is a prime.

It is a super-2 number, since 2×285364879² = 162866228333369282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285364829) 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 11 ways as a sum of consecutive naturals, for example, 87492 + ... + 90694.

It is an arithmetic number, because the mean of its divisors is an integer number (24842214).

Almost surely, 2^285364879 is an apocalyptic number.

285364879 is a deficient number, since it is larger than the sum of its proper divisors (12741689).

285364879 is an equidigital number, since it uses as much as digits as its factorization.

285364879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338 (or 3297 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 285364879 is about 16892.7463427354. The cubic root of 285364879 is about 658.3651602552.

The spelling of 285364879 in words is "two hundred eighty-five million, three hundred sixty-four thousand, eight hundred seventy-nine".