8679139 has 4 divisors (see below), whose sum is σ = 9919024. Its totient is φ = 7439256.

The previous prime is 8679137. The next prime is 8679179. The reversal of 8679139 is 9319768.

8679139 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 8679139 - 2¹ = 8679137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8679095 and 8679104.

It is not an unprimeable number, because it can be changed into a prime (8679137) 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, 619932 + ... + 619945.

It is an arithmetic number, because the mean of its divisors is an integer number (2479756).

Almost surely, 2^8679139 is an apocalyptic number.

8679139 is a deficient number, since it is larger than the sum of its proper divisors (1239885).

8679139 is a wasteful number, since it uses less digits than its factorization.

8679139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239884.

The product of its digits is 81648, while the sum is 43.

The square root of 8679139 is about 2946.0378476863. The cubic root of 8679139 is about 205.5064929682.

The spelling of 8679139 in words is "eight million, six hundred seventy-nine thousand, one hundred thirty-nine".