8649988 has 6 divisors (see below), whose sum is σ = 15137486. Its totient is φ = 4324992.

The previous prime is 8649973. The next prime is 8650003. The reversal of 8649988 is 8899468.

It is an interprime number because it is at equal distance from previous prime (8649973) and next prime (8650003).

It can be written as a sum of positive squares in only one way, i.e., 7354944 + 1295044 = 2712^2 + 1138^2 .

It is an unprimeable number.

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, 1081245 + ... + 1081252.

Almost surely, 2^8649988 is an apocalyptic number.

It is an amenable number.

8649988 is a deficient number, since it is larger than the sum of its proper divisors (6487498).

8649988 is a wasteful number, since it uses less digits than its factorization.

8649988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162501 (or 2162499 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 8649988 is about 2941.0861939086. The cubic root of 8649988 is about 205.2761537062.

The spelling of 8649988 in words is "eight million, six hundred forty-nine thousand, nine hundred eighty-eight".