8199272 has 8 divisors (see below), whose sum is σ = 15373650. Its totient is φ = 4099632.

The previous prime is 8199271. The next prime is 8199277. The reversal of 8199272 is 2729918.

It can be written as a sum of positive squares in only one way, i.e., 5080516 + 3118756 = 2254^2 + 1766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8199272² = 134456122659968, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8199271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512447 + ... + 512462.

Almost surely, 2^8199272 is an apocalyptic number.

It is an amenable number.

8199272 is a deficient number, since it is larger than the sum of its proper divisors (7174378).

8199272 is a wasteful number, since it uses less digits than its factorization.

8199272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024915 (or 1024911 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 8199272 is about 2863.4370955200. The cubic root of 8199272 is about 201.6469997289.

The spelling of 8199272 in words is "eight million, one hundred ninety-nine thousand, two hundred seventy-two".