8197925 has 6 divisors (see below), whose sum is σ = 10165458. Its totient is φ = 6558320.

The previous prime is 8197921. The next prime is 8197933. The reversal of 8197925 is 5297918.

It can be written as a sum of positive squares in 3 ways, for example, as 1156 + 8196769 = 34^2 + 2863^2 .

It is not a de Polignac number, because 8197925 - 2² = 8197921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197921) 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 5 ways as a sum of consecutive naturals, for example, 163934 + ... + 163983.

It is an arithmetic number, because the mean of its divisors is an integer number (1694243).

Almost surely, 2^8197925 is an apocalyptic number.

It is an amenable number.

8197925 is a deficient number, since it is larger than the sum of its proper divisors (1967533).

8197925 is a wasteful number, since it uses less digits than its factorization.

8197925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327927 (or 327922 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 8197925 is about 2863.2018790159. The cubic root of 8197925 is about 201.6359567410.

The spelling of 8197925 in words is "eight million, one hundred ninety-seven thousand, nine hundred twenty-five".