9673646401 has 4 divisors (see below), whose sum is σ = 9674211204. Its totient is φ = 9673081600.

The previous prime is 9673646371. The next prime is 9673646417. The reversal of 9673646401 is 1046463769.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1046463769 = 13 ⋅80497213.

It can be written as a sum of positive squares in 2 ways, for example, as 4311892225 + 5361754176 = 65665^2 + 73224^2 .

It is a cyclic number.

It is not a de Polignac number, because 9673646401 - 2⁹ = 9673645889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9673646501) 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, 255880 + ... + 291241.

It is an arithmetic number, because the mean of its divisors is an integer number (2418552801).

Almost surely, 2^9673646401 is an apocalyptic number.

It is an amenable number.

9673646401 is a deficient number, since it is larger than the sum of its proper divisors (564803).

9673646401 is a wasteful number, since it uses less digits than its factorization.

9673646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564802.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 9673646401 is about 98354.6968934377. The cubic root of 9673646401 is about 2130.7380898466.

The spelling of 9673646401 in words is "nine billion, six hundred seventy-three million, six hundred forty-six thousand, four hundred one".