2085543983 has 4 divisors (see below), whose sum is σ = 2089248888. Its totient is φ = 2081839080.

The previous prime is 2085543953. The next prime is 2085544001. The reversal of 2085543983 is 3893455802.

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 2085543983 - 2³⁰ = 1011802159 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 (2085543913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851608 + ... + 1852733.

It is an arithmetic number, because the mean of its divisors is an integer number (522312222).

Almost surely, 2^2085543983 is an apocalyptic number.

2085543983 is a deficient number, since it is larger than the sum of its proper divisors (3704905).

2085543983 is an equidigital number, since it uses as much as digits as its factorization.

2085543983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704904.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 2085543983 is about 45667.7564918620. The cubic root of 2085543983 is about 1277.6339720839.

The spelling of 2085543983 in words is "two billion, eighty-five million, five hundred forty-three thousand, nine hundred eighty-three".