8684290889 has 6 divisors (see below), whose sum is σ = 8833980570. Its totient is φ = 8537096096.

The previous prime is 8684290877. The next prime is 8684290921. The reversal of 8684290889 is 9880924868.

It can be written as a sum of positive squares in only one way, i.e., 4563678025 + 4120612864 = 67555^2 + 64192^2 .

It is not a de Polignac number, because 8684290889 - 2²⁸ = 8415855433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8684299889) 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, 1243904 + ... + 1250865.

It is an arithmetic number, because the mean of its divisors is an integer number (1472330095).

Almost surely, 2^8684290889 is an apocalyptic number.

It is an amenable number.

8684290889 is a deficient number, since it is larger than the sum of its proper divisors (149689681).

8684290889 is an equidigital number, since it uses as much as digits as its factorization.

8684290889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494887 (or 2494828 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 62.

The square root of 8684290889 is about 93189.5428092659. The cubic root of 8684290889 is about 2055.4714743175.

The spelling of 8684290889 in words is "eight billion, six hundred eighty-four million, two hundred ninety thousand, eight hundred eighty-nine".