85418673 has 4 divisors (see below), whose sum is σ = 113891568. Its totient is φ = 56945780.

The previous prime is 85418657. The next prime is 85418677. The reversal of 85418673 is 37681458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85418673 - 2⁴ = 85418657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85418677) 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, 14236443 + ... + 14236448.

It is an arithmetic number, because the mean of its divisors is an integer number (28472892).

Almost surely, 2^85418673 is an apocalyptic number.

It is an amenable number.

85418673 is a deficient number, since it is larger than the sum of its proper divisors (28472895).

85418673 is a wasteful number, since it uses less digits than its factorization.

85418673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28472894.

The product of its digits is 161280, while the sum is 42.

The square root of 85418673 is about 9242.2222976944. Note that the first 4 decimals coincide. The cubic root of 85418673 is about 440.4036808357.

The spelling of 85418673 in words is "eighty-five million, four hundred eighteen thousand, six hundred seventy-three".