85164853 has 4 divisors (see below), whose sum is σ = 85189420. Its totient is φ = 85140288.

The previous prime is 85164841. The next prime is 85164869. The reversal of 85164853 is 35846158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80156209 + 5008644 = 8953^2 + 2238^2 .

It is a cyclic number.

It is not a de Polignac number, because 85164853 - 2⁹ = 85164341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85134853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6018 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (21297355).

Almost surely, 2^85164853 is an apocalyptic number.

It is an amenable number.

85164853 is a deficient number, since it is larger than the sum of its proper divisors (24567).

85164853 is a wasteful number, since it uses less digits than its factorization.

85164853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24566.

The product of its digits is 115200, while the sum is 40.

The square root of 85164853 is about 9228.4805358195. The cubic root of 85164853 is about 439.9670309319.

The spelling of 85164853 in words is "eighty-five million, one hundred sixty-four thousand, eight hundred fifty-three".