662617 has 2 divisors, whose sum is σ = 662618. Its totient is φ = 662616.

The previous prime is 662591. The next prime is 662639. The reversal of 662617 is 716266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 47961 = 784^2 + 219^2 .

662617 is a truncatable prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662617 is a prime.

It is a super-2 number, since 2×662617² = 878122577378, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (662647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331308 + 331309.

It is an arithmetic number, because the mean of its divisors is an integer number (331309).

2⁶⁶²⁶¹⁷ is an apocalyptic number.

It is an amenable number.

662617 is a deficient number, since it is larger than the sum of its proper divisors (1).

662617 is an equidigital number, since it uses as much as digits as its factorization.

662617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 662617 is about 814.0128991607. The cubic root of 662617 is about 87.1808016120.

The spelling of 662617 in words is "six hundred sixty-two thousand, six hundred seventeen".