662843 has 2 divisors, whose sum is σ = 662844. Its totient is φ = 662842.

The previous prime is 662839. The next prime is 662867. The reversal of 662843 is 348266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662843 - 2² = 662839 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (662833) 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, 331421 + 331422.

It is an arithmetic number, because the mean of its divisors is an integer number (331422).

2⁶⁶²⁸⁴³ is an apocalyptic number.

662843 is a deficient number, since it is larger than the sum of its proper divisors (1).

662843 is an equidigital number, since it uses as much as digits as its factorization.

662843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 662843 is about 814.1517057650. The cubic root of 662843 is about 87.1907121241.

The spelling of 662843 in words is "six hundred sixty-two thousand, eight hundred forty-three".