8459986 has 4 divisors (see below), whose sum is σ = 12689982. Its totient is φ = 4229992.

The previous prime is 8459933. The next prime is 8459987. The reversal of 8459986 is 6899548.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 78961 = 2895^2 + 281^2 .

It is not an unprimeable number, because it can be changed into a prime (8459987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114995 + ... + 2114998.

Almost surely, 2^8459986 is an apocalyptic number.

8459986 is a deficient number, since it is larger than the sum of its proper divisors (4229996).

8459986 is a wasteful number, since it uses less digits than its factorization.

8459986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229995.

The product of its digits is 622080, while the sum is 49.

The square root of 8459986 is about 2908.6055077992. The cubic root of 8459986 is about 203.7620094042.

The spelling of 8459986 in words is "eight million, four hundred fifty-nine thousand, nine hundred eighty-six".