8047979 has 4 divisors (see below), whose sum is σ = 8069376. Its totient is φ = 8026584.

The previous prime is 8047969. The next prime is 8048017. The reversal of 8047979 is 9797408.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8047979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8047909) 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, 10124 + ... + 10889.

It is an arithmetic number, because the mean of its divisors is an integer number (2017344).

Almost surely, 2^8047979 is an apocalyptic number.

8047979 is a deficient number, since it is larger than the sum of its proper divisors (21397).

8047979 is a wasteful number, since it uses less digits than its factorization.

8047979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21396.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 8047979 is about 2836.8960150136. The cubic root of 8047979 is about 200.3990283524.

The spelling of 8047979 in words is "eight million, forty-seven thousand, nine hundred seventy-nine".