8091272 has 24 divisors (see below), whose sum is σ = 17648910. Its totient is φ = 3467520.

The previous prime is 8091241. The next prime is 8091277. The reversal of 8091272 is 2721908.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7761796 + 329476 = 2786^2 + 574^2 .

It is not an unprimeable number, because it can be changed into a prime (8091277) 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, 9929 + ... + 10712.

Almost surely, 2^8091272 is an apocalyptic number.

It is an amenable number.

8091272 is an abundant number, since it is smaller than the sum of its proper divisors (9557638).

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

8091272 is a wasteful number, since it uses less digits than its factorization.

8091272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20661 (or 20650 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8091272 is about 2844.5161275690. The cubic root of 8091272 is about 200.7577256339.

The spelling of 8091272 in words is "eight million, ninety-one thousand, two hundred seventy-two".