982643 has 2 divisors, whose sum is σ = 982644. Its totient is φ = 982642.

The previous prime is 982633. The next prime is 982687. The reversal of 982643 is 346289.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-982643 is a prime.

It is not a weakly prime, because it can be changed into another prime (982603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491321 + 491322.

It is an arithmetic number, because the mean of its divisors is an integer number (491322).

2⁹⁸²⁶⁴³ is an apocalyptic number.

982643 is a deficient number, since it is larger than the sum of its proper divisors (1).

982643 is an equidigital number, since it uses as much as digits as its factorization.

982643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 982643 is about 991.2835114134. The cubic root of 982643 is about 99.4180532830.

The spelling of 982643 in words is "nine hundred eighty-two thousand, six hundred forty-three".