8674639 has 4 divisors (see below), whose sum is σ = 8686800. Its totient is φ = 8662480.

The previous prime is 8674619. The next prime is 8674667. The reversal of 8674639 is 9364768.

It is a happy number.

8674639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8674639 - 2⁷ = 8674511 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 6⁴ + 7⁸ + 4 + 6⁷ + 3¹² + 9 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8674595 and 8674604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8674619) 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, 4939 + ... + 6460.

It is an arithmetic number, because the mean of its divisors is an integer number (2171700).

Almost surely, 2^8674639 is an apocalyptic number.

8674639 is a deficient number, since it is larger than the sum of its proper divisors (12161).

8674639 is a wasteful number, since it uses less digits than its factorization.

8674639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160.

The product of its digits is 217728, while the sum is 43.

The square root of 8674639 is about 2945.2740110217. The cubic root of 8674639 is about 205.4709695101.

The spelling of 8674639 in words is "eight million, six hundred seventy-four thousand, six hundred thirty-nine".