9663618 has 32 divisors (see below), whose sum is σ = 20002752. Its totient is φ = 3110400.

The previous prime is 9663587. The next prime is 9663629. The reversal of 9663618 is 8163669.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39978 + ... + 40218.

It is an arithmetic number, because the mean of its divisors is an integer number (625086).

Almost surely, 2^9663618 is an apocalyptic number.

9663618 is an abundant number, since it is smaller than the sum of its proper divisors (10339134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9663618 is a wasteful number, since it uses less digits than its factorization.

9663618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450.

The product of its digits is 46656, while the sum is 39.

The square root of 9663618 is about 3108.6360353055. The cubic root of 9663618 is about 213.0001542903. Note that the first 3 decimals are identical.

The spelling of 9663618 in words is "nine million, six hundred sixty-three thousand, six hundred eighteen".