285413875 has 16 divisors (see below), whose sum is σ = 357525792. Its totient is φ = 227479200.

The previous prime is 285413873. The next prime is 285413879. The reversal of 285413875 is 578314582.

It is not a de Polignac number, because 285413875 - 2¹ = 285413873 is a prime.

It is a super-2 number, since 2×285413875² = 162922160085031250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285413873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30504 + ... + 38746.

It is an arithmetic number, because the mean of its divisors is an integer number (22345362).

Almost surely, 2^285413875 is an apocalyptic number.

285413875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

285413875 is a deficient number, since it is larger than the sum of its proper divisors (72111917).

285413875 is an equidigital number, since it uses as much as digits as its factorization.

285413875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535 (or 8525 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 285413875 is about 16894.1964887354. The cubic root of 285413875 is about 658.4028376474.

The spelling of 285413875 in words is "two hundred eighty-five million, four hundred thirteen thousand, eight hundred seventy-five".