8935793221 has 2 divisors, whose sum is σ = 8935793222. Its totient is φ = 8935793220.

The previous prime is 8935793213. The next prime is 8935793281. The reversal of 8935793221 is 1223975398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7075164996 + 1860628225 = 84114^2 + 43135^2 .

It is a cyclic number.

It is not a de Polignac number, because 8935793221 - 2³ = 8935793213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8935793281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4467896610 + 4467896611.

It is an arithmetic number, because the mean of its divisors is an integer number (4467896611).

Almost surely, 2^8935793221 is an apocalyptic number.

It is an amenable number.

8935793221 is a deficient number, since it is larger than the sum of its proper divisors (1).

8935793221 is an equidigital number, since it uses as much as digits as its factorization.

8935793221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 8935793221 is about 94529.3246617154. The cubic root of 8935793221 is about 2075.1255139444.

The spelling of 8935793221 in words is "eight billion, nine hundred thirty-five million, seven hundred ninety-three thousand, two hundred twenty-one".