85187718 has 48 divisors (see below), whose sum is σ = 230121216. Its totient is φ = 22126320.

The previous prime is 85187701. The next prime is 85187723. The reversal of 85187718 is 81778158.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29346 + ... + 32117.

It is an arithmetic number, because the mean of its divisors is an integer number (4794192).

Almost surely, 2^85187718 is an apocalyptic number.

85187718 is an abundant number, since it is smaller than the sum of its proper divisors (144933498).

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

85187718 is a wasteful number, since it uses less digits than its factorization.

85187718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61489 (or 61486 counting only the distinct ones).

The product of its digits is 125440, while the sum is 45.

The square root of 85187718 is about 9229.7192806715. The cubic root of 85187718 is about 440.0064014220.

It can be divided in two parts, 85187 and 718, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 85187718 in words is "eighty-five million, one hundred eighty-seven thousand, seven hundred eighteen".