8639673 has 16 divisors (see below), whose sum is σ = 13243776. Its totient is φ = 4907520.

The previous prime is 8639663. The next prime is 8639711. The reversal of 8639673 is 3769368.

8639673 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8639673 - 2⁹ = 8639161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8639663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (827736).

Almost surely, 2^8639673 is an apocalyptic number.

It is an amenable number.

8639673 is a deficient number, since it is larger than the sum of its proper divisors (4604103).

8639673 is a wasteful number, since it uses less digits than its factorization.

8639673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464.

The product of its digits is 163296, while the sum is 42.

The square root of 8639673 is about 2939.3320669839. The cubic root of 8639673 is about 205.1945248550.

The spelling of 8639673 in words is "eight million, six hundred thirty-nine thousand, six hundred seventy-three".