8197172 has 6 divisors (see below), whose sum is σ = 14345058. Its totient is φ = 4098584.

The previous prime is 8197159. The next prime is 8197183. The reversal of 8197172 is 2717918.

It can be written as a sum of positive squares in only one way, i.e., 6574096 + 1623076 = 2564^2 + 1274^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024643 + ... + 1024650.

It is an arithmetic number, because the mean of its divisors is an integer number (2390843).

Almost surely, 2^8197172 is an apocalyptic number.

It is an amenable number.

8197172 is a deficient number, since it is larger than the sum of its proper divisors (6147886).

8197172 is a wasteful number, since it uses less digits than its factorization.

8197172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049297 (or 2049295 counting only the distinct ones).

The product of its digits is 7056, while the sum is 35.

The square root of 8197172 is about 2863.0703798545. The cubic root of 8197172 is about 201.6297829623.

The spelling of 8197172 in words is "eight million, one hundred ninety-seven thousand, one hundred seventy-two".