85794143 has 4 divisors (see below), whose sum is σ = 88561728. Its totient is φ = 83026560.

The previous prime is 85794119. The next prime is 85794161. The reversal of 85794143 is 34149758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34149758 = 2 ⋅17074879.

It is a cyclic number.

It is not a de Polignac number, because 85794143 - 2¹⁰ = 85793119 is a prime.

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 85794143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85794113) 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, 1383746 + ... + 1383807.

It is an arithmetic number, because the mean of its divisors is an integer number (22140432).

Almost surely, 2^85794143 is an apocalyptic number.

85794143 is a deficient number, since it is larger than the sum of its proper divisors (2767585).

85794143 is a wasteful number, since it uses less digits than its factorization.

85794143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767584.

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

The square root of 85794143 is about 9262.5127800182. The cubic root of 85794143 is about 441.0480234551.

The spelling of 85794143 in words is "eighty-five million, seven hundred ninety-four thousand, one hundred forty-three".