9964553 has 4 divisors (see below), whose sum is σ = 9972480. Its totient is φ = 9956628.

The previous prime is 9964501. The next prime is 9964561. The reversal of 9964553 is 3554699.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3554699 = 1153 ⋅3083.

It is a cyclic number.

It is not a de Polignac number, because 9964553 - 2⁶ = 9964489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9964553.

It is not an unprimeable number, because it can be changed into a prime (9964153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (2493120).

Almost surely, 2^9964553 is an apocalyptic number.

It is an amenable number.

9964553 is a deficient number, since it is larger than the sum of its proper divisors (7927).

9964553 is a wasteful number, since it uses less digits than its factorization.

9964553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7926.

The product of its digits is 145800, while the sum is 41.

The square root of 9964553 is about 3156.6680218230. The cubic root of 9964553 is about 215.1886068074.

The spelling of 9964553 in words is "nine million, nine hundred sixty-four thousand, five hundred fifty-three".