9894336961 has 4 divisors (see below), whose sum is σ = 9896420800. Its totient is φ = 9892253124.

The previous prime is 9894336941. The next prime is 9894336971. The reversal of 9894336961 is 1696334989.

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.

It is a cyclic number.

It is not a de Polignac number, because 9894336961 - 2⁹ = 9894336449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9894336896 and 9894336905.

It is not an unprimeable number, because it can be changed into a prime (9894336941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034781 + ... + 1044298.

It is an arithmetic number, because the mean of its divisors is an integer number (2474105200).

Almost surely, 2^9894336961 is an apocalyptic number.

It is an amenable number.

9894336961 is a deficient number, since it is larger than the sum of its proper divisors (2083839).

9894336961 is a wasteful number, since it uses less digits than its factorization.

9894336961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083838.

The product of its digits is 7558272, while the sum is 58.

The square root of 9894336961 is about 99470.2817981331. The cubic root of 9894336961 is about 2146.8196686204.

The spelling of 9894336961 in words is "nine billion, eight hundred ninety-four million, three hundred thirty-six thousand, nine hundred sixty-one".