8276489209 has 4 divisors (see below), whose sum is σ = 8276975604. Its totient is φ = 8276002816.

The previous prime is 8276489203. The next prime is 8276489233. The reversal of 8276489209 is 9029846728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3944216809 + 4332272400 = 62803^2 + 65820^2 .

It is a cyclic number.

It is not a de Polignac number, because 8276489209 - 2³ = 8276489201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8276489209.

It is not an unprimeable number, because it can be changed into a prime (8276489201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216712 + ... + 252025.

It is an arithmetic number, because the mean of its divisors is an integer number (2069243901).

Almost surely, 2^8276489209 is an apocalyptic number.

It is an amenable number.

8276489209 is a deficient number, since it is larger than the sum of its proper divisors (486395).

8276489209 is a wasteful number, since it uses less digits than its factorization.

8276489209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486394.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 8276489209 is about 90975.2120580106. The cubic root of 8276489209 is about 2022.7803109928.

The spelling of 8276489209 in words is "eight billion, two hundred seventy-six million, four hundred eighty-nine thousand, two hundred nine".