213338393 has 2 divisors, whose sum is σ = 213338394. Its totient is φ = 213338392.

The previous prime is 213338371. The next prime is 213338401. The reversal of 213338393 is 393833312.

213338393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151117849 + 62220544 = 12293^2 + 7888^2 .

It is a cyclic number.

It is not a de Polignac number, because 213338393 - 2⁶ = 213338329 is a prime.

It is not a weakly prime, because it can be changed into another prime (213332393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106669196 + 106669197.

It is an arithmetic number, because the mean of its divisors is an integer number (106669197).

Almost surely, 2^213338393 is an apocalyptic number.

It is an amenable number.

213338393 is a deficient number, since it is larger than the sum of its proper divisors (1).

213338393 is an equidigital number, since it uses as much as digits as its factorization.

213338393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 35.

The square root of 213338393 is about 14606.1080716254. The cubic root of 213338393 is about 597.5253566732.

The spelling of 213338393 in words is "two hundred thirteen million, three hundred thirty-eight thousand, three hundred ninety-three".