9664618 has 4 divisors (see below), whose sum is σ = 14496930. Its totient is φ = 4832308.

The previous prime is 9664601. The next prime is 9664621. The reversal of 9664618 is 8164669.

9664618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 9566649 + 97969 = 3093^2 + 313^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2416153 + ... + 2416156.

Almost surely, 2^9664618 is an apocalyptic number.

9664618 is a deficient number, since it is larger than the sum of its proper divisors (4832312).

9664618 is a wasteful number, since it uses less digits than its factorization.

9664618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832311.

The product of its digits is 62208, while the sum is 40.

The square root of 9664618 is about 3108.7968733901. The cubic root of 9664618 is about 213.0075011869.

The spelling of 9664618 in words is "nine million, six hundred sixty-four thousand, six hundred eighteen".