85109603 has 4 divisors (see below), whose sum is σ = 85302168. Its totient is φ = 84917040.

The previous prime is 85109587. The next prime is 85109653. The reversal of 85109603 is 30690158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30690158 = 2 ⋅15345079.

It is a cyclic number.

It is not a de Polignac number, because 85109603 - 2⁴ = 85109587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85109603.

It is not an unprimeable number, because it can be changed into a prime (85109653) 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 3 ways as a sum of consecutive naturals, for example, 95618 + ... + 96503.

It is an arithmetic number, because the mean of its divisors is an integer number (21325542).

Almost surely, 2^85109603 is an apocalyptic number.

85109603 is a deficient number, since it is larger than the sum of its proper divisors (192565).

85109603 is a wasteful number, since it uses less digits than its factorization.

85109603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192564.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 85109603 is about 9225.4865996326. The cubic root of 85109603 is about 439.8718686826.

The spelling of 85109603 in words is "eighty-five million, one hundred nine thousand, six hundred three".