320412773 has 2 divisors, whose sum is σ = 320412774. Its totient is φ = 320412772.

The previous prime is 320412767. The next prime is 320412791. The reversal of 320412773 is 377214023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263153284 + 57259489 = 16222^2 + 7567^2 .

It is a cyclic number.

It is not a de Polignac number, because 320412773 - 2¹⁴ = 320396389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320412733) 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, 160206386 + 160206387.

It is an arithmetic number, because the mean of its divisors is an integer number (160206387).

Almost surely, 2^320412773 is an apocalyptic number.

It is an amenable number.

320412773 is a deficient number, since it is larger than the sum of its proper divisors (1).

320412773 is an equidigital number, since it uses as much as digits as its factorization.

320412773 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 29.

The square root of 320412773 is about 17900.0774579330. The cubic root of 320412773 is about 684.2843489335.

Adding to 320412773 its reverse (377214023), we get a palindrome (697626796).

The spelling of 320412773 in words is "three hundred twenty million, four hundred twelve thousand, seven hundred seventy-three".