9664361 has 4 divisors (see below), whose sum is σ = 11044992. Its totient is φ = 8283732.

The previous prime is 9664349. The next prime is 9664367. The reversal of 9664361 is 1634669.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1634669 = 17 ⋅96157.

It is a cyclic number.

It is not a de Polignac number, because 9664361 - 2¹⁰ = 9663337 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690305 + ... + 690318.

It is an arithmetic number, because the mean of its divisors is an integer number (2761248).

Almost surely, 2^9664361 is an apocalyptic number.

It is an amenable number.

9664361 is a deficient number, since it is larger than the sum of its proper divisors (1380631).

9664361 is a wasteful number, since it uses less digits than its factorization.

9664361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380630.

The product of its digits is 23328, while the sum is 35.

The square root of 9664361 is about 3108.7555387968. The cubic root of 9664361 is about 213.0056130828.

The spelling of 9664361 in words is "nine million, six hundred sixty-four thousand, three hundred sixty-one".