8727138841 has 6 divisors (see below), whose sum is σ = 8894911550. Its totient is φ = 8562473088.

The previous prime is 8727138773. The next prime is 8727138859. The reversal of 8727138841 is 1488317278.

It can be written as a sum of positive squares in 3 ways, for example, as 1052678025 + 7674460816 = 32445^2 + 87604^2 .

It is not a de Polignac number, because 8727138841 - 2²⁹ = 8190267929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8727133841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1550616 + ... + 1556233.

Almost surely, 2^8727138841 is an apocalyptic number.

It is an amenable number.

8727138841 is a deficient number, since it is larger than the sum of its proper divisors (167772709).

8727138841 is an equidigital number, since it uses as much as digits as its factorization.

8727138841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106955 (or 3106902 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 8727138841 is about 93419.1567131710. The cubic root of 8727138841 is about 2058.8464683452.

The spelling of 8727138841 in words is "eight billion, seven hundred twenty-seven million, one hundred thirty-eight thousand, eight hundred forty-one".