981683 has 2 divisors, whose sum is σ = 981684. Its totient is φ = 981682.

The previous prime is 981653. The next prime is 981691. The reversal of 981683 is 386189.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (981623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490841 + 490842.

It is an arithmetic number, because the mean of its divisors is an integer number (490842).

2⁹⁸¹⁶⁸³ is an apocalyptic number.

981683 is a deficient number, since it is larger than the sum of its proper divisors (1).

981683 is an equidigital number, since it uses as much as digits as its factorization.

981683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 981683 is about 990.7991723856. The cubic root of 981683 is about 99.3856670115.

The spelling of 981683 in words is "nine hundred eighty-one thousand, six hundred eighty-three".