2085656943 has 8 divisors (see below), whose sum is σ = 2784672688. Its totient is φ = 1388539584.

The previous prime is 2085656929. The next prime is 2085656971. The reversal of 2085656943 is 3496565802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2085656943 - 2¹² = 2085652847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2085656892 and 2085656901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085656983) 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 7 ways as a sum of consecutive naturals, for example, 472030 + ... + 476427.

It is an arithmetic number, because the mean of its divisors is an integer number (348084086).

Almost surely, 2^2085656943 is an apocalyptic number.

2085656943 is a deficient number, since it is larger than the sum of its proper divisors (699015745).

2085656943 is an equidigital number, since it uses as much as digits as its factorization.

2085656943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949193.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The square root of 2085656943 is about 45668.9932339219. The cubic root of 2085656943 is about 1277.6570386362.

The spelling of 2085656943 in words is "two billion, eighty-five million, six hundred fifty-six thousand, nine hundred forty-three".