9864663 has 8 divisors (see below), whose sum is σ = 13173888. Its totient is φ = 6565944.

The previous prime is 9864653. The next prime is 9864683. The reversal of 9864663 is 3664689.

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

It is not a de Polignac number, because 9864663 - 2⁶ = 9864599 is a prime.

It is a super-2 number, since 2×9864663² = 194623152207138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9864643) 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, 81 + ... + 4442.

It is an arithmetic number, because the mean of its divisors is an integer number (1646736).

Almost surely, 2^9864663 is an apocalyptic number.

9864663 is a deficient number, since it is larger than the sum of its proper divisors (3309225).

9864663 is a wasteful number, since it uses less digits than its factorization.

9864663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253.

The product of its digits is 186624, while the sum is 42.

The square root of 9864663 is about 3140.8061067185. The cubic root of 9864663 is about 214.4671354391.

The spelling of 9864663 in words is "nine million, eight hundred sixty-four thousand, six hundred sixty-three".