620377 has 2 divisors, whose sum is σ = 620378. Its totient is φ = 620376.

The previous prime is 620363. The next prime is 620383. The reversal of 620377 is 773026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571536 + 48841 = 756^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 620377 - 2¹¹ = 618329 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (620317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310188 + 310189.

It is an arithmetic number, because the mean of its divisors is an integer number (310189).

2⁶²⁰³⁷⁷ is an apocalyptic number.

It is an amenable number.

620377 is a deficient number, since it is larger than the sum of its proper divisors (1).

620377 is an equidigital number, since it uses as much as digits as its factorization.

620377 is an evil number, because the sum of its binary digits is even.

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

The square root of 620377 is about 787.6401462597. The cubic root of 620377 is about 85.2874695898.

The spelling of 620377 in words is "six hundred twenty thousand, three hundred seventy-seven".