85184985 has 16 divisors (see below), whose sum is σ = 142222464. Its totient is φ = 43456512.

The previous prime is 85184971. The next prime is 85184987. The reversal of 85184985 is 58948158.

It is not a de Polignac number, because 85184985 - 2⁴ = 85184969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85184987) 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, 123112 + ... + 123801.

It is an arithmetic number, because the mean of its divisors is an integer number (8888904).

Almost surely, 2^85184985 is an apocalyptic number.

It is an amenable number.

85184985 is a deficient number, since it is larger than the sum of its proper divisors (57037479).

85184985 is a wasteful number, since it uses less digits than its factorization.

85184985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246944.

The product of its digits is 460800, while the sum is 48.

The square root of 85184985 is about 9229.5712251437. The cubic root of 85184985 is about 440.0016959301.

The spelling of 85184985 in words is "eighty-five million, one hundred eighty-four thousand, nine hundred eighty-five".