85284018 has 24 divisors (see below), whose sum is σ = 189290556. Its totient is φ = 27734400.

The previous prime is 85284011. The next prime is 85284079. The reversal of 85284018 is 81048258.

It can be written as a sum of positive squares in 2 ways, for example, as 58936329 + 26347689 = 7677^2 + 5133^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85284011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57043 + ... + 58518.

Almost surely, 2^85284018 is an apocalyptic number.

85284018 is an abundant number, since it is smaller than the sum of its proper divisors (104006538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85284018 is a wasteful number, since it uses less digits than its factorization.

85284018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115610 (or 115607 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 85284018 is about 9234.9346505538. The cubic root of 85284018 is about 440.1721399457.

The spelling of 85284018 in words is "eighty-five million, two hundred eighty-four thousand, eighteen".