9664477 has 2 divisors, whose sum is σ = 9664478. Its totient is φ = 9664476.

The previous prime is 9664471. The next prime is 9664519. The reversal of 9664477 is 7744669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9326916 + 337561 = 3054^2 + 581^2 .

It is an emirp because it is prime and its reverse (7744669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9664477 - 2⁷ = 9664349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9664471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832238 + 4832239.

It is an arithmetic number, because the mean of its divisors is an integer number (4832239).

Almost surely, 2^9664477 is an apocalyptic number.

It is an amenable number.

9664477 is a deficient number, since it is larger than the sum of its proper divisors (1).

9664477 is an equidigital number, since it uses as much as digits as its factorization.

9664477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 9664477 is about 3108.7741957241. The cubic root of 9664477 is about 213.0064653052.

It can be divided in two parts, 96644 and 77, that added together give a square (96721 = 311²).

The spelling of 9664477 in words is "nine million, six hundred sixty-four thousand, four hundred seventy-seven".