213924773 has 2 divisors, whose sum is σ = 213924774. Its totient is φ = 213924772.

The previous prime is 213924751. The next prime is 213924791. The reversal of 213924773 is 377429312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191047684 + 22877089 = 13822^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 213924773 - 2⁶ = 213924709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213954773) 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, 106962386 + 106962387.

It is an arithmetic number, because the mean of its divisors is an integer number (106962387).

Almost surely, 2^213924773 is an apocalyptic number.

It is an amenable number.

213924773 is a deficient number, since it is larger than the sum of its proper divisors (1).

213924773 is an equidigital number, since it uses as much as digits as its factorization.

213924773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 213924773 is about 14626.1674063987. The cubic root of 213924773 is about 598.0723068162.

The spelling of 213924773 in words is "two hundred thirteen million, nine hundred twenty-four thousand, seven hundred seventy-three".