85684755 has 16 divisors (see below), whose sum is σ = 147641760. Its totient is φ = 42183168.

The previous prime is 85684747. The next prime is 85684757. The reversal of 85684755 is 55748658.

It is not a de Polignac number, because 85684755 - 2³ = 85684747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85684757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219510 + ... + 219899.

It is an arithmetic number, because the mean of its divisors is an integer number (9227610).

Almost surely, 2^85684755 is an apocalyptic number.

85684755 is a deficient number, since it is larger than the sum of its proper divisors (61957005).

85684755 is a wasteful number, since it uses less digits than its factorization.

85684755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439430.

The product of its digits is 1344000, while the sum is 48.

The square root of 85684755 is about 9256.6060194868. The cubic root of 85684755 is about 440.8604975223.

The spelling of 85684755 in words is "eighty-five million, six hundred eighty-four thousand, seven hundred fifty-five".