8216173 has 6 divisors (see below), whose sum is σ = 9557646. Its totient is φ = 7042392.

The previous prime is 8216161. The next prime is 8216179. The reversal of 8216173 is 3716128.

It can be written as a sum of positive squares in only one way, i.e., 5866084 + 2350089 = 2422^2 + 1533^2 .

It is not a de Polignac number, because 8216173 - 2¹⁷ = 8085101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83790 + ... + 83887.

It is an arithmetic number, because the mean of its divisors is an integer number (1592941).

Almost surely, 2^8216173 is an apocalyptic number.

It is an amenable number.

8216173 is a deficient number, since it is larger than the sum of its proper divisors (1341473).

8216173 is a wasteful number, since it uses less digits than its factorization.

8216173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167691 (or 167684 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 8216173 is about 2866.3867498996. The cubic root of 8216173 is about 201.7854549878.

The spelling of 8216173 in words is "eight million, two hundred sixteen thousand, one hundred seventy-three".