620577101 has 2 divisors, whose sum is σ = 620577102. Its totient is φ = 620577100.

The previous prime is 620577077. The next prime is 620577109. The reversal of 620577101 is 101775026.

620577101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467683876 + 152893225 = 21626^2 + 12365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620577101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620577109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310288550 + 310288551.

It is an arithmetic number, because the mean of its divisors is an integer number (310288551).

Almost surely, 2^620577101 is an apocalyptic number.

It is an amenable number.

620577101 is a deficient number, since it is larger than the sum of its proper divisors (1).

620577101 is an equidigital number, since it uses as much as digits as its factorization.

620577101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 620577101 is about 24911.3849675204. The cubic root of 620577101 is about 852.9663835513.

The spelling of 620577101 in words is "six hundred twenty million, five hundred seventy-seven thousand, one hundred one".