246643 has 2 divisors, whose sum is σ = 246644. Its totient is φ = 246642.

The previous prime is 246641. The next prime is 246661. The reversal of 246643 is 346642.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 246643 - 2¹ = 246641 is a prime.

Together with 246641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (246641) 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, 123321 + 123322.

It is an arithmetic number, because the mean of its divisors is an integer number (123322).

2²⁴⁶⁶⁴³ is an apocalyptic number.

246643 is a deficient number, since it is larger than the sum of its proper divisors (1).

246643 is an equidigital number, since it uses as much as digits as its factorization.

246643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 246643 is about 496.6316542469. The cubic root of 246643 is about 62.7128105642.

Subtracting 246643 from its reverse (346642), we obtain a palindrome (99999).

The spelling of 246643 in words is "two hundred forty-six thousand, six hundred forty-three".