662899 has 2 divisors, whose sum is σ = 662900. Its totient is φ = 662898.

The previous prime is 662897. The next prime is 662917. The reversal of 662899 is 998266.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662899 - 2¹ = 662897 is a prime.

Together with 662897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (662897) 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, 331449 + 331450.

It is an arithmetic number, because the mean of its divisors is an integer number (331450).

2⁶⁶²⁸⁹⁹ is an apocalyptic number.

662899 is a deficient number, since it is larger than the sum of its proper divisors (1).

662899 is an equidigital number, since it uses as much as digits as its factorization.

662899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 662899 is about 814.1860966634. The cubic root of 662899 is about 87.1931674780.

The spelling of 662899 in words is "six hundred sixty-two thousand, eight hundred ninety-nine".