620220373 has 2 divisors, whose sum is σ = 620220374. Its totient is φ = 620220372.

The previous prime is 620220343. The next prime is 620220409. The reversal of 620220373 is 373022026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372567204 + 247653169 = 19302^2 + 15737^2 .

It is a cyclic number.

It is not a de Polignac number, because 620220373 - 2²⁵ = 586665941 is a prime.

It is a super-2 number, since 2×620220373² = 769346622168518258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620220343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310110186 + 310110187.

It is an arithmetic number, because the mean of its divisors is an integer number (310110187).

Almost surely, 2^620220373 is an apocalyptic number.

It is an amenable number.

620220373 is a deficient number, since it is larger than the sum of its proper divisors (1).

620220373 is an equidigital number, since it uses as much as digits as its factorization.

620220373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 620220373 is about 24904.2239991532. The cubic root of 620220373 is about 852.8029145733.

Adding to 620220373 its reverse (373022026), we get a palindrome (993242399).

The spelling of 620220373 in words is "six hundred twenty million, two hundred twenty thousand, three hundred seventy-three".