383794321 has 2 divisors, whose sum is σ = 383794322. Its totient is φ = 383794320.

The previous prime is 383794309. The next prime is 383794343. The reversal of 383794321 is 123497383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273439296 + 110355025 = 16536^2 + 10505^2 .

It is an emirp because it is prime and its reverse (123497383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383794321 - 2⁵ = 383794289 is a prime.

It is not a weakly prime, because it can be changed into another prime (383714321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191897160 + 191897161.

It is an arithmetic number, because the mean of its divisors is an integer number (191897161).

Almost surely, 2^383794321 is an apocalyptic number.

It is an amenable number.

383794321 is a deficient number, since it is larger than the sum of its proper divisors (1).

383794321 is an equidigital number, since it uses as much as digits as its factorization.

383794321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 383794321 is about 19590.6692330813. The cubic root of 383794321 is about 726.7184418916.

The spelling of 383794321 in words is "three hundred eighty-three million, seven hundred ninety-four thousand, three hundred twenty-one".