8079986 has 16 divisors (see below), whose sum is σ = 12554136. Its totient is φ = 3897216.

The previous prime is 8079983. The next prime is 8079989. The reversal of 8079986 is 6899708.

It is an interprime number because it is at equal distance from previous prime (8079983) and next prime (8079989).

It can be written as a sum of positive squares in 4 ways, for example, as 7946761 + 133225 = 2819^2 + 365^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8079986.

It is not an unprimeable number, because it can be changed into a prime (8079983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9740 + ... + 10536.

Almost surely, 2^8079986 is an apocalyptic number.

8079986 is a deficient number, since it is larger than the sum of its proper divisors (4474150).

8079986 is a wasteful number, since it uses less digits than its factorization.

8079986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 8079986 is about 2842.5316181179. The cubic root of 8079986 is about 200.6643408130.

The spelling of 8079986 in words is "eight million, seventy-nine thousand, nine hundred eighty-six".