9964541 has 4 divisors (see below), whose sum is σ = 10000284. Its totient is φ = 9928800.

The previous prime is 9964501. The next prime is 9964561. The reversal of 9964541 is 1454699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5359225 + 4605316 = 2315^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 9964541 - 2¹⁴ = 9948157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9964495 and 9964504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9964501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17450 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (2500071).

Almost surely, 2^9964541 is an apocalyptic number.

It is an amenable number.

9964541 is a deficient number, since it is larger than the sum of its proper divisors (35743).

9964541 is a wasteful number, since it uses less digits than its factorization.

9964541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35742.

The product of its digits is 38880, while the sum is 38.

The square root of 9964541 is about 3156.6661210841. Note that the first 3 decimals coincide. The cubic root of 9964541 is about 215.1885204257.

The spelling of 9964541 in words is "nine million, nine hundred sixty-four thousand, five hundred forty-one".