620773 has 2 divisors, whose sum is σ = 620774. Its totient is φ = 620772.

The previous prime is 620771. The next prime is 620777. The reversal of 620773 is 377026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357604 + 263169 = 598^2 + 513^2 .

It is a cyclic number.

It is not a de Polignac number, because 620773 - 2¹ = 620771 is a prime.

Together with 620771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310386 + 310387.

It is an arithmetic number, because the mean of its divisors is an integer number (310387).

2⁶²⁰⁷⁷³ is an apocalyptic number.

It is an amenable number.

620773 is a deficient number, since it is larger than the sum of its proper divisors (1).

620773 is an equidigital number, since it uses as much as digits as its factorization.

620773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 620773 is about 787.8914899908. The cubic root of 620773 is about 85.3056126729.

Adding to 620773 its reverse (377026), we get a palindrome (997799).

The spelling of 620773 in words is "six hundred twenty thousand, seven hundred seventy-three".