8247172 has 6 divisors (see below), whose sum is σ = 14432558. Its totient is φ = 4123584.

The previous prime is 8247103. The next prime is 8247199. The reversal of 8247172 is 2717428.

It can be written as a sum of positive squares in only one way, i.e., 8099716 + 147456 = 2846^2 + 384^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030893 + ... + 1030900.

Almost surely, 2^8247172 is an apocalyptic number.

It is an amenable number.

8247172 is a deficient number, since it is larger than the sum of its proper divisors (6185386).

8247172 is a wasteful number, since it uses less digits than its factorization.

8247172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061797 (or 2061795 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 8247172 is about 2871.7889894628. The cubic root of 8247172 is about 202.0389102576.

The spelling of 8247172 in words is "eight million, two hundred forty-seven thousand, one hundred seventy-two".