662917 has 2 divisors, whose sum is σ = 662918. Its totient is φ = 662916.

The previous prime is 662899. The next prime is 662939. The reversal of 662917 is 719266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 21316 = 801^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 662917 - 2⁷ = 662789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331458 + 331459.

It is an arithmetic number, because the mean of its divisors is an integer number (331459).

2⁶⁶²⁹¹⁷ is an apocalyptic number.

It is an amenable number.

662917 is a deficient number, since it is larger than the sum of its proper divisors (1).

662917 is an equidigital number, since it uses as much as digits as its factorization.

662917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 662917 is about 814.1971505723. The cubic root of 662917 is about 87.1939566695.

The spelling of 662917 in words is "six hundred sixty-two thousand, nine hundred seventeen".