8529172 has 12 divisors (see below), whose sum is σ = 15804180. Its totient is φ = 4013696.

The previous prime is 8529139. The next prime is 8529173. The reversal of 8529172 is 2719258.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 4343056 = 2046^2 + 2084^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8529173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62647 + ... + 62782.

It is an arithmetic number, because the mean of its divisors is an integer number (1317015).

Almost surely, 2^8529172 is an apocalyptic number.

It is an amenable number.

8529172 is a deficient number, since it is larger than the sum of its proper divisors (7275008).

8529172 is a wasteful number, since it uses less digits than its factorization.

8529172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125450 (or 125448 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 8529172 is about 2920.4746189618. The cubic root of 8529172 is about 204.3159591853.

The spelling of 8529172 in words is "eight million, five hundred twenty-nine thousand, one hundred seventy-two".