620117 has 2 divisors, whose sum is σ = 620118. Its totient is φ = 620116.

The previous prime is 620111. The next prime is 620159. The reversal of 620117 is 711026.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421201 + 198916 = 649^2 + 446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620117 is a prime.

It is a Chen prime.

It is a plaindrome in base 9.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 620095 and 620104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620111) 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, 310058 + 310059.

It is an arithmetic number, because the mean of its divisors is an integer number (310059).

2⁶²⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

620117 is a deficient number, since it is larger than the sum of its proper divisors (1).

620117 is an equidigital number, since it uses as much as digits as its factorization.

620117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 620117 is about 787.4750789708. The cubic root of 620117 is about 85.2755532655.

Subtracting 620117 from its reverse (711026), we obtain a palindrome (90909).

It can be divided in two parts, 620 and 117, that added together give a palindrome (737).

The spelling of 620117 in words is "six hundred twenty thousand, one hundred seventeen".