200620657 has 2 divisors, whose sum is σ = 200620658. Its totient is φ = 200620656.

The previous prime is 200620633. The next prime is 200620687. The reversal of 200620657 is 756026002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199628641 + 992016 = 14129^2 + 996^2 .

It is a cyclic number.

It is not a de Polignac number, because 200620657 - 2¹¹ = 200618609 is a prime.

It is a super-2 number, since 2×200620657² = 80497296030223298, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200620687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100310328 + 100310329.

It is an arithmetic number, because the mean of its divisors is an integer number (100310329).

Almost surely, 2^200620657 is an apocalyptic number.

It is an amenable number.

200620657 is a deficient number, since it is larger than the sum of its proper divisors (1).

200620657 is an equidigital number, since it uses as much as digits as its factorization.

200620657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 200620657 is about 14164.0621645063. The cubic root of 200620657 is about 585.4078603140.

Adding to 200620657 its reverse (756026002), we get a palindrome (956646659).

The spelling of 200620657 in words is "two hundred million, six hundred twenty thousand, six hundred fifty-seven".