983543 has 4 divisors (see below), whose sum is σ = 1072968. Its totient is φ = 894120.

The previous prime is 983533. The next prime is 983557. The reversal of 983543 is 345389.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 983543 - 2⁴ = 983527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44696 + ... + 44717.

It is an arithmetic number, because the mean of its divisors is an integer number (268242).

2⁹⁸³⁵⁴³ is an apocalyptic number.

983543 is a deficient number, since it is larger than the sum of its proper divisors (89425).

983543 is a wasteful number, since it uses less digits than its factorization.

983543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89424.

The product of its digits is 12960, while the sum is 32.

The square root of 983543 is about 991.7373644267. The cubic root of 983543 is about 99.4483962610.

The spelling of 983543 in words is "nine hundred eighty-three thousand, five hundred forty-three".