285411117 has 16 divisors (see below), whose sum is σ = 399305088. Its totient is φ = 180987840.

The previous prime is 285411107. The next prime is 285411149. The reversal of 285411117 is 711114582.

It is not a de Polignac number, because 285411117 - 2⁶ = 285411053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285411107) 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 15 ways as a sum of consecutive naturals, for example, 1063 + ... + 23915.

It is an arithmetic number, because the mean of its divisors is an integer number (24956568).

Almost surely, 2^285411117 is an apocalyptic number.

It is an amenable number.

285411117 is a deficient number, since it is larger than the sum of its proper divisors (113893971).

285411117 is a wasteful number, since it uses less digits than its factorization.

285411117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23060.

The product of its digits is 2240, while the sum is 30.

The square root of 285411117 is about 16894.1148628746. The cubic root of 285411117 is about 658.4007168899.

Adding to 285411117 its reverse (711114582), we get a palindrome (996525699).

It can be divided in two parts, 28 and 5411117, that added together give a palindrome (5411145).

The spelling of 285411117 in words is "two hundred eighty-five million, four hundred eleven thousand, one hundred seventeen".