320772223 has 2 divisors, whose sum is σ = 320772224. Its totient is φ = 320772222.

The previous prime is 320772163. The next prime is 320772229. The reversal of 320772223 is 322277023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320772223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320772191 and 320772200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320772229) 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, 160386111 + 160386112.

It is an arithmetic number, because the mean of its divisors is an integer number (160386112).

Almost surely, 2^320772223 is an apocalyptic number.

320772223 is a deficient number, since it is larger than the sum of its proper divisors (1).

320772223 is an equidigital number, since it uses as much as digits as its factorization.

320772223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 320772223 is about 17910.1151029244. The cubic root of 320772223 is about 684.5401378300.

The spelling of 320772223 in words is "three hundred twenty million, seven hundred seventy-two thousand, two hundred twenty-three".