213342793 has 2 divisors, whose sum is σ = 213342794. Its totient is φ = 213342792.

The previous prime is 213342781. The next prime is 213342797. The reversal of 213342793 is 397243312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172344384 + 40998409 = 13128^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 213342793 - 2²⁵ = 179788361 is a prime.

It is not a weakly prime, because it can be changed into another prime (213342797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106671396 + 106671397.

It is an arithmetic number, because the mean of its divisors is an integer number (106671397).

Almost surely, 2^213342793 is an apocalyptic number.

It is an amenable number.

213342793 is a deficient number, since it is larger than the sum of its proper divisors (1).

213342793 is an equidigital number, since it uses as much as digits as its factorization.

213342793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 213342793 is about 14606.2586927659. The cubic root of 213342793 is about 597.5294645344.

The spelling of 213342793 in words is "two hundred thirteen million, three hundred forty-two thousand, seven hundred ninety-three".