8284728689 has 8 divisors (see below), whose sum is σ = 8435439168. Its totient is φ = 8134814160.

The previous prime is 8284728659. The next prime is 8284728691. The reversal of 8284728689 is 9868274828.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8284728689 - 2⁸ = 8284728433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8284728619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177962 + ... + 219635.

It is an arithmetic number, because the mean of its divisors is an integer number (1054429896).

Almost surely, 2^8284728689 is an apocalyptic number.

It is an amenable number.

8284728689 is a deficient number, since it is larger than the sum of its proper divisors (150710479).

8284728689 is a wasteful number, since it uses less digits than its factorization.

8284728689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397975.

The product of its digits is 24772608, while the sum is 62.

The square root of 8284728689 is about 91020.4849965105. The cubic root of 8284728689 is about 2023.4513334454.

The spelling of 8284728689 in words is "eight billion, two hundred eighty-four million, seven hundred twenty-eight thousand, six hundred eighty-nine".