8943899684 has 6 divisors (see below), whose sum is σ = 15651824454. Its totient is φ = 4471949840.

The previous prime is 8943899677. The next prime is 8943899687. The reversal of 8943899684 is 4869983498.

It can be written as a sum of positive squares in only one way, i.e., 8710115584 + 233784100 = 93328^2 + 15290^2 .

It is not an unprimeable number, because it can be changed into a prime (8943899687) 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 as a sum of consecutive naturals, namely, 1117987457 + ... + 1117987464.

It is an arithmetic number, because the mean of its divisors is an integer number (2608637409).

Almost surely, 2^8943899684 is an apocalyptic number.

It is an amenable number.

8943899684 is a deficient number, since it is larger than the sum of its proper divisors (6707924770).

8943899684 is a wasteful number, since it uses less digits than its factorization.

8943899684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235974925 (or 2235974923 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 68.

The square root of 8943899684 is about 94572.1929744679. The cubic root of 8943899684 is about 2075.7528353789.

The spelling of 8943899684 in words is "eight billion, nine hundred forty-three million, eight hundred ninety-nine thousand, six hundred eighty-four".