9313600921 has 2 divisors, whose sum is σ = 9313600922. Its totient is φ = 9313600920.

The previous prime is 9313600913. The next prime is 9313600987. The reversal of 9313600921 is 1290063139.

9313600921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5452345600 + 3861255321 = 73840^2 + 62139^2 .

It is a cyclic number.

It is not a de Polignac number, because 9313600921 - 2³ = 9313600913 is a prime.

It is not a weakly prime, because it can be changed into another prime (9313600721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4656800460 + 4656800461.

It is an arithmetic number, because the mean of its divisors is an integer number (4656800461).

Almost surely, 2^9313600921 is an apocalyptic number.

It is an amenable number.

9313600921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9313600921 is an equidigital number, since it uses as much as digits as its factorization.

9313600921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9313600921 is about 96506.9993368357. Note that the first 3 decimals coincide. The cubic root of 9313600921 is about 2103.9683783776.

The spelling of 9313600921 in words is "nine billion, three hundred thirteen million, six hundred thousand, nine hundred twenty-one".