8279979 has 8 divisors (see below), whose sum is σ = 11066880. Its totient is φ = 5506536.

The previous prime is 8279963. The next prime is 8279983. The reversal of 8279979 is 9799728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8279979 - 2⁴ = 8279963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8279959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827 + ... + 4460.

It is an arithmetic number, because the mean of its divisors is an integer number (1383360).

Almost surely, 2^8279979 is an apocalyptic number.

8279979 is a deficient number, since it is larger than the sum of its proper divisors (2786901).

8279979 is a wasteful number, since it uses less digits than its factorization.

8279979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6729.

The product of its digits is 571536, while the sum is 51.

The square root of 8279979 is about 2877.4952649831. The cubic root of 8279979 is about 202.3064573576.

The spelling of 8279979 in words is "eight million, two hundred seventy-nine thousand, nine hundred seventy-nine".