383402213 has 2 divisors, whose sum is σ = 383402214. Its totient is φ = 383402212.

The previous prime is 383402191. The next prime is 383402219. The reversal of 383402213 is 312204383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364886404 + 18515809 = 19102^2 + 4303^2 .

It is an emirp because it is prime and its reverse (312204383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 383402213 - 2²⁶ = 316293349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383402219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191701106 + 191701107.

It is an arithmetic number, because the mean of its divisors is an integer number (191701107).

Almost surely, 2^383402213 is an apocalyptic number.

It is an amenable number.

383402213 is a deficient number, since it is larger than the sum of its proper divisors (1).

383402213 is an equidigital number, since it uses as much as digits as its factorization.

383402213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 383402213 is about 19580.6591564227. The cubic root of 383402213 is about 726.4708707353.

Adding to 383402213 its reverse (312204383), we get a palindrome (695606596).

The spelling of 383402213 in words is "three hundred eighty-three million, four hundred two thousand, two hundred thirteen".