8639012 has 12 divisors (see below), whose sum is σ = 15219456. Its totient is φ = 4290600.

The previous prime is 8639011. The next prime is 8639027. The reversal of 8639012 is 2109368.

It is a super-2 number, since 2×8639012² = 149265056672288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8639011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6548 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (1268288).

Almost surely, 2^8639012 is an apocalyptic number.

It is an amenable number.

8639012 is a deficient number, since it is larger than the sum of its proper divisors (6580444).

8639012 is a wasteful number, since it uses less digits than its factorization.

8639012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14458 (or 14456 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 8639012 is about 2939.2196243221. The cubic root of 8639012 is about 205.1892917464.

The spelling of 8639012 in words is "eight million, six hundred thirty-nine thousand, twelve".