8155879 has 4 divisors (see below), whose sum is σ = 8162584. Its totient is φ = 8149176.

The previous prime is 8155859. The next prime is 8155897. The reversal of 8155879 is 9785518.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8155879 - 2⁷ = 8155751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155859) 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, 957 + ... + 4150.

It is an arithmetic number, because the mean of its divisors is an integer number (2040646).

Almost surely, 2^8155879 is an apocalyptic number.

8155879 is a deficient number, since it is larger than the sum of its proper divisors (6705).

8155879 is a wasteful number, since it uses less digits than its factorization.

8155879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704.

The product of its digits is 100800, while the sum is 43.

The square root of 8155879 is about 2855.8499610449. The cubic root of 8155879 is about 201.2906449291.

The spelling of 8155879 in words is "eight million, one hundred fifty-five thousand, eight hundred seventy-nine".