9664489 has 4 divisors (see below), whose sum is σ = 9677056. Its totient is φ = 9651924.

The previous prime is 9664477. The next prime is 9664519. The reversal of 9664489 is 9844669.

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.

It is a cyclic number.

It is not a de Polignac number, because 9664489 - 2⁹ = 9663977 is a prime.

It is a super-2 number, since 2×9664489² = 186804695262242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9664429) 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, 5049 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (2419264).

Almost surely, 2^9664489 is an apocalyptic number.

It is an amenable number.

9664489 is a deficient number, since it is larger than the sum of its proper divisors (12567).

9664489 is a wasteful number, since it uses less digits than its factorization.

9664489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12566.

The product of its digits is 373248, while the sum is 46.

The square root of 9664489 is about 3108.7761257447. The cubic root of 9664489 is about 213.0065534657.

It can be divided in two parts, 9664 and 489, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 9664489 in words is "nine million, six hundred sixty-four thousand, four hundred eighty-nine".