8632989 has 12 divisors (see below), whose sum is σ = 12501216. Its totient is φ = 5740872.

The previous prime is 8632979. The next prime is 8633021. The reversal of 8632989 is 9892368.

8632989 is a `hidden beast` number, since 8 + 632 + 9 + 8 + 9 = 666.

It is not a de Polignac number, because 8632989 - 2¹⁶ = 8567453 is a prime.

It is a super-3 number, since 3×8632989³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8632979) 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 11 ways as a sum of consecutive naturals, for example, 3574 + ... + 5480.

It is an arithmetic number, because the mean of its divisors is an integer number (1041768).

Almost surely, 2^8632989 is an apocalyptic number.

It is an amenable number.

8632989 is a deficient number, since it is larger than the sum of its proper divisors (3868227).

8632989 is a wasteful number, since it uses less digits than its factorization.

8632989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2413 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 8632989 is about 2938.1948539877. The cubic root of 8632989 is about 205.1415956124.

The spelling of 8632989 in words is "eight million, six hundred thirty-two thousand, nine hundred eighty-nine".