938794321 has 2 divisors, whose sum is σ = 938794322. Its totient is φ = 938794320.

The previous prime is 938794249. The next prime is 938794327. The reversal of 938794321 is 123497839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877344400 + 61449921 = 29620^2 + 7839^2 .

It is an emirp because it is prime and its reverse (123497839) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 938794321 - 2⁷ = 938794193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (938794327) 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 as a sum of consecutive naturals, namely, 469397160 + 469397161.

It is an arithmetic number, because the mean of its divisors is an integer number (469397161).

Almost surely, 2^938794321 is an apocalyptic number.

It is an amenable number.

938794321 is a deficient number, since it is larger than the sum of its proper divisors (1).

938794321 is an equidigital number, since it uses as much as digits as its factorization.

938794321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 938794321 is about 30639.7506680456. The cubic root of 938794321 is about 979.1671116517.

The spelling of 938794321 in words is "nine hundred thirty-eight million, seven hundred ninety-four thousand, three hundred twenty-one".