85167885 has 16 divisors (see below), whose sum is σ = 148656960. Its totient is φ = 41293440.

The previous prime is 85167871. The next prime is 85167893. The reversal of 85167885 is 58876158.

It is not a de Polignac number, because 85167885 - 2¹⁴ = 85151501 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 257920 + ... + 258249.

It is an arithmetic number, because the mean of its divisors is an integer number (9291060).

Almost surely, 2^85167885 is an apocalyptic number.

It is an amenable number.

85167885 is a deficient number, since it is larger than the sum of its proper divisors (63489075).

85167885 is a wasteful number, since it uses less digits than its factorization.

85167885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516188.

The product of its digits is 537600, while the sum is 48.

The square root of 85167885 is about 9228.6448084212. The cubic root of 85167885 is about 439.9722520380.

The spelling of 85167885 in words is "eighty-five million, one hundred sixty-seven thousand, eight hundred eighty-five".