9664905 has 8 divisors (see below), whose sum is σ = 15463872. Its totient is φ = 5154608.

The previous prime is 9664903. The next prime is 9664909. The reversal of 9664905 is 5094669.

9664905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9664905 - 2¹ = 9664903 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9664903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322149 + ... + 322178.

It is an arithmetic number, because the mean of its divisors is an integer number (1932984).

Almost surely, 2^9664905 is an apocalyptic number.

It is an amenable number.

9664905 is a deficient number, since it is larger than the sum of its proper divisors (5798967).

9664905 is a wasteful number, since it uses less digits than its factorization.

9664905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644335.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 9664905 is about 3108.8430323836. The cubic root of 9664905 is about 213.0096096526.

The spelling of 9664905 in words is "nine million, six hundred sixty-four thousand, nine hundred five".