8649784900 has 18 divisors (see below), whose sum is σ = 18770033450. Its totient is φ = 3459913920.

The previous prime is 8649784867. The next prime is 8649784901. The reversal of 8649784900 is 94879468.

It can be written as a sum of positive squares in 3 ways, for example, as 61685316 + 8588099584 = 7854^2 + 92672^2 .

It is not an unprimeable number, because it can be changed into a prime (8649784901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43248825 + ... + 43249024.

Almost surely, 2^8649784900 is an apocalyptic number.

It is an amenable number.

8649784900 is an abundant number, since it is smaller than the sum of its proper divisors (10120248550).

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

8649784900 is a wasteful number, since it uses less digits than its factorization.

8649784900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86497863 (or 86497856 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 8649784900 is about 93004.2197967383. The cubic root of 8649784900 is about 2052.7454707916.

The spelling of 8649784900 in words is "eight billion, six hundred forty-nine million, seven hundred eighty-four thousand, nine hundred".