662897 has 2 divisors, whose sum is σ = 662898. Its totient is φ = 662896.

The previous prime is 662867. The next prime is 662899. The reversal of 662897 is 798266.

662897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 167281 = 704^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 662897 - 2⁶ = 662833 is a prime.

Together with 662899, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662897.

It is not a weakly prime, because it can be changed into another prime (662899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331448 + 331449.

It is an arithmetic number, because the mean of its divisors is an integer number (331449).

2⁶⁶²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

662897 is a deficient number, since it is larger than the sum of its proper divisors (1).

662897 is an equidigital number, since it uses as much as digits as its factorization.

662897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 662897 is about 814.1848684421. The cubic root of 662897 is about 87.1930797892.

The spelling of 662897 in words is "six hundred sixty-two thousand, eight hundred ninety-seven".