8272745 has 16 divisors (see below), whose sum is σ = 10780560. Its totient is φ = 6057984.

The previous prime is 8272723. The next prime is 8272751. The reversal of 8272745 is 5472728.

It can be written as a sum of positive squares in 8 ways, for example, as 2226064 + 6046681 = 1492^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 8272745 - 2⁶ = 8272681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8441 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (673785).

Almost surely, 2^8272745 is an apocalyptic number.

It is an amenable number.

8272745 is a deficient number, since it is larger than the sum of its proper divisors (2507815).

8272745 is a wasteful number, since it uses less digits than its factorization.

8272745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its digits is 31360, while the sum is 35.

The square root of 8272745 is about 2876.2379943252. The cubic root of 8272745 is about 202.2475235800.

It can be divided in two parts, 82 and 72745, that added together give a palindrome (72827).

The spelling of 8272745 in words is "eight million, two hundred seventy-two thousand, seven hundred forty-five".