8287632661 has 16 divisors (see below), whose sum is σ = 10335006720. Its totient is φ = 6456412080.

The previous prime is 8287632641. The next prime is 8287632679. The reversal of 8287632661 is 1662367828.

It is a cyclic number.

It is not a de Polignac number, because 8287632661 - 2¹⁷ = 8287501589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8287632611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424660 + ... + 443746.

It is an arithmetic number, because the mean of its divisors is an integer number (645937920).

Almost surely, 2^8287632661 is an apocalyptic number.

It is an amenable number.

8287632661 is a deficient number, since it is larger than the sum of its proper divisors (2047374059).

8287632661 is a wasteful number, since it uses less digits than its factorization.

8287632661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24744.

The product of its digits is 1161216, while the sum is 49.

The square root of 8287632661 is about 91036.4358979414. The cubic root of 8287632661 is about 2023.6877266056.

The spelling of 8287632661 in words is "eight billion, two hundred eighty-seven million, six hundred thirty-two thousand, six hundred sixty-one".