216833753 has 2 divisors, whose sum is σ = 216833754. Its totient is φ = 216833752.

The previous prime is 216833741. The next prime is 216833777. The reversal of 216833753 is 357338612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164531929 + 52301824 = 12827^2 + 7232^2 .

It is a cyclic number.

It is not a de Polignac number, because 216833753 - 2⁸ = 216833497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (216833713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108416876 + 108416877.

It is an arithmetic number, because the mean of its divisors is an integer number (108416877).

Almost surely, 2^216833753 is an apocalyptic number.

It is an amenable number.

216833753 is a deficient number, since it is larger than the sum of its proper divisors (1).

216833753 is an equidigital number, since it uses as much as digits as its factorization.

216833753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 216833753 is about 14725.2759906224. The cubic root of 216833753 is about 600.7710023531.

The spelling of 216833753 in words is "two hundred sixteen million, eight hundred thirty-three thousand, seven hundred fifty-three".