620197 has 2 divisors, whose sum is σ = 620198. Its totient is φ = 620196.

The previous prime is 620183. The next prime is 620201. The reversal of 620197 is 791026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617796 + 2401 = 786^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 620197 - 2¹⁵ = 587429 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620117) 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, 310098 + 310099.

It is an arithmetic number, because the mean of its divisors is an integer number (310099).

2⁶²⁰¹⁹⁷ is an apocalyptic number.

It is an amenable number.

620197 is a deficient number, since it is larger than the sum of its proper divisors (1).

620197 is an equidigital number, since it uses as much as digits as its factorization.

620197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 620197 is about 787.5258725909. The cubic root of 620197 is about 85.2792201815.

It can be divided in two parts, 62019 and 7, that added together give a palindrome (62026).

The spelling of 620197 in words is "six hundred twenty thousand, one hundred ninety-seven".