8649284 has 18 divisors (see below), whose sum is σ = 17607870. Its totient is φ = 3706752.

The previous prime is 8649283. The next prime is 8649293. The reversal of 8649284 is 4829468.

It can be written as a sum of positive squares in only one way, i.e., 4528384 + 4120900 = 2128^2 + 2030^2 .

It is a super-2 number, since 2×8649284² = 149620227425312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8649283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21869 + ... + 22260.

It is an arithmetic number, because the mean of its divisors is an integer number (978215).

Almost surely, 2^8649284 is an apocalyptic number.

It is an amenable number.

8649284 is an abundant number, since it is smaller than the sum of its proper divisors (8958586).

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

8649284 is a wasteful number, since it uses less digits than its factorization.

8649284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44147 (or 44138 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 8649284 is about 2940.9665077998. The cubic root of 8649284 is about 205.2705845912.

The spelling of 8649284 in words is "eight million, six hundred forty-nine thousand, two hundred eighty-four".