9609986 has 4 divisors (see below), whose sum is σ = 14414982. Its totient is φ = 4804992.

The previous prime is 9609959. The next prime is 9610033. The reversal of 9609986 is 6899069.

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., 6599761 + 3010225 = 2569^2 + 1735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9609986.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402495 + ... + 2402498.

Almost surely, 2^9609986 is an apocalyptic number.

9609986 is a deficient number, since it is larger than the sum of its proper divisors (4804996).

9609986 is a wasteful number, since it uses less digits than its factorization.

9609986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804995.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 9609986 is about 3099.9977419347. The cubic root of 9609986 is about 212.6053807194.

The spelling of 9609986 in words is "nine million, six hundred nine thousand, nine hundred eighty-six".