9964481 has 2 divisors, whose sum is σ = 9964482. Its totient is φ = 9964480.

The previous prime is 9964469. The next prime is 9964483. The reversal of 9964481 is 1844699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9709456 + 255025 = 3116^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 9964481 - 2¹⁴ = 9948097 is a prime.

It is a super-2 number, since 2×9964481² = 198581763198722, which contains 22 as substring.

Together with 9964483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9964483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4982240 + 4982241.

It is an arithmetic number, because the mean of its divisors is an integer number (4982241).

Almost surely, 2^9964481 is an apocalyptic number.

It is an amenable number.

9964481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9964481 is an equidigital number, since it uses as much as digits as its factorization.

9964481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 9964481 is about 3156.6566173722. The cubic root of 9964481 is about 215.1880885163.

The spelling of 9964481 in words is "nine million, nine hundred sixty-four thousand, four hundred eighty-one".