8508421284 has 48 divisors (see below), whose sum is σ = 22243158336. Its totient is φ = 2508624000.

The previous prime is 8508421283. The next prime is 8508421297. The reversal of 8508421284 is 4821248058.

It is not an unprimeable number, because it can be changed into a prime (8508421283) 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, 866167 + ... + 875934.

It is an arithmetic number, because the mean of its divisors is an integer number (463399132).

Almost surely, 2^8508421284 is an apocalyptic number.

It is an amenable number.

8508421284 is an abundant number, since it is smaller than the sum of its proper divisors (13734737052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8508421284 is a wasteful number, since it uses less digits than its factorization.

8508421284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742156 (or 1742154 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The square root of 8508421284 is about 92241.1040913973. The cubic root of 8508421284 is about 2041.5013045187.

The spelling of 8508421284 in words is "eight billion, five hundred eight million, four hundred twenty-one thousand, two hundred eighty-four".