986645663 has 8 divisors (see below), whose sum is σ = 1015854000. Its totient is φ = 957571200.

The previous prime is 986645629. The next prime is 986645687. The reversal of 986645663 is 366546689.

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

It is a cyclic number.

It is not a de Polignac number, because 986645663 - 2²² = 982451359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986645603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18413 + ... + 48086.

It is an arithmetic number, because the mean of its divisors is an integer number (126981750).

Almost surely, 2^986645663 is an apocalyptic number.

986645663 is a deficient number, since it is larger than the sum of its proper divisors (29208337).

986645663 is a wasteful number, since it uses less digits than its factorization.

986645663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66937.

The product of its digits is 5598720, while the sum is 53.

The square root of 986645663 is about 31410.9163030944. The cubic root of 986645663 is about 995.5285906313.

The spelling of 986645663 in words is "nine hundred eighty-six million, six hundred forty-five thousand, six hundred sixty-three".