8225172 has 24 divisors (see below), whose sum is σ = 21324800. Its totient is φ = 2741688.

The previous prime is 8225171. The next prime is 8225177. The reversal of 8225172 is 2715228.

8225172 = T₄₃ + T₄₄ + ... + T₃₆₆.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8225171) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 37972 + ... + 38187.

Almost surely, 2^8225172 is an apocalyptic number.

It is an amenable number.

8225172 is an abundant number, since it is smaller than the sum of its proper divisors (13099628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8225172 is a wasteful number, since it uses less digits than its factorization.

8225172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76172 (or 76164 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 8225172 is about 2867.9560666091. The cubic root of 8225172 is about 201.8590985504.

The spelling of 8225172 in words is "eight million, two hundred twenty-five thousand, one hundred seventy-two".