85729443 has 8 divisors (see below), whose sum is σ = 114679488. Its totient is φ = 56966184.

The previous prime is 85729439. The next prime is 85729471. The reversal of 85729443 is 34492758.

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

It is not a de Polignac number, because 85729443 - 2² = 85729439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85729395 and 85729404.

It is not an unprimeable number, because it can be changed into a prime (85729403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45621 + ... + 47462.

It is an arithmetic number, because the mean of its divisors is an integer number (14334936).

Almost surely, 2^85729443 is an apocalyptic number.

85729443 is a deficient number, since it is larger than the sum of its proper divisors (28950045).

85729443 is a wasteful number, since it uses less digits than its factorization.

85729443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93393.

The product of its digits is 241920, while the sum is 42.

The square root of 85729443 is about 9259.0195485267. The cubic root of 85729443 is about 440.9371262836.

The spelling of 85729443 in words is "eighty-five million, seven hundred twenty-nine thousand, four hundred forty-three".