85791443 has 4 divisors (see below), whose sum is σ = 85829688. Its totient is φ = 85753200.

The previous prime is 85791439. The next prime is 85791451. The reversal of 85791443 is 34419758.

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 85791443 - 2² = 85791439 is a prime.

It is a super-4 number, since 4×85791443⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85791443.

It is not an unprimeable number, because it can be changed into a prime (85791413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15533 + ... + 20318.

It is an arithmetic number, because the mean of its divisors is an integer number (21457422).

Almost surely, 2^85791443 is an apocalyptic number.

85791443 is a deficient number, since it is larger than the sum of its proper divisors (38245).

85791443 is a wasteful number, since it uses less digits than its factorization.

85791443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38244.

The product of its digits is 120960, while the sum is 41.

The square root of 85791443 is about 9262.3670300847. The cubic root of 85791443 is about 441.0433967129.

The spelling of 85791443 in words is "eighty-five million, seven hundred ninety-one thousand, four hundred forty-three".