85473219 has 16 divisors (see below), whose sum is σ = 126049952. Its totient is φ = 51176448.

The previous prime is 85473209. The next prime is 85473251. The reversal of 85473219 is 91237458.

It is not a de Polignac number, because 85473219 - 2⁵ = 85473187 is a prime.

It is a super-2 number, since 2×85473219² = 14611342332443922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85473209) 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 15 ways as a sum of consecutive naturals, for example, 28174 + ... + 31059.

It is an arithmetic number, because the mean of its divisors is an integer number (7878122).

Almost surely, 2^85473219 is an apocalyptic number.

85473219 is a deficient number, since it is larger than the sum of its proper divisors (40576733).

85473219 is a wasteful number, since it uses less digits than its factorization.

85473219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59286.

The product of its digits is 60480, while the sum is 39.

The square root of 85473219 is about 9245.1727404089. The cubic root of 85473219 is about 440.4974040886.

The spelling of 85473219 in words is "eighty-five million, four hundred seventy-three thousand, two hundred nineteen".