85853943 has 12 divisors (see below), whose sum is σ = 141727248. Its totient is φ = 49059360.

The previous prime is 85853923. The next prime is 85853969. The reversal of 85853943 is 34935858.

It is a happy number.

It is not a de Polignac number, because 85853943 - 2⁶ = 85853879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85853923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681318 + ... + 681443.

It is an arithmetic number, because the mean of its divisors is an integer number (11810604).

Almost surely, 2^85853943 is an apocalyptic number.

85853943 is a deficient number, since it is larger than the sum of its proper divisors (55873305).

85853943 is a wasteful number, since it uses less digits than its factorization.

85853943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362774 (or 1362771 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 85853943 is about 9265.7402834312. The cubic root of 85853943 is about 441.1504723535.

The spelling of 85853943 in words is "eighty-five million, eight hundred fifty-three thousand, nine hundred forty-three".