320836853 has 2 divisors, whose sum is σ = 320836854. Its totient is φ = 320836852.

The previous prime is 320836847. The next prime is 320836861. The reversal of 320836853 is 358638023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290123089 + 30713764 = 17033^2 + 5542^2 .

It is an emirp because it is prime and its reverse (358638023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320836853 - 2⁴ = 320836837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320836843) 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, 160418426 + 160418427.

It is an arithmetic number, because the mean of its divisors is an integer number (160418427).

Almost surely, 2^320836853 is an apocalyptic number.

It is an amenable number.

320836853 is a deficient number, since it is larger than the sum of its proper divisors (1).

320836853 is an equidigital number, since it uses as much as digits as its factorization.

320836853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 320836853 is about 17911.9192997289. The cubic root of 320836853 is about 684.5861090363.

The spelling of 320836853 in words is "three hundred twenty million, eight hundred thirty-six thousand, eight hundred fifty-three".