85729535 has 4 divisors (see below), whose sum is σ = 102875448. Its totient is φ = 68583624.

The previous prime is 85729529. The next prime is 85729549. The reversal of 85729535 is 53592758.

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 85729535 - 2⁴ = 85729519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8572949 + ... + 8572958.

It is an arithmetic number, because the mean of its divisors is an integer number (25718862).

Almost surely, 2^85729535 is an apocalyptic number.

85729535 is a deficient number, since it is larger than the sum of its proper divisors (17145913).

85729535 is a wasteful number, since it uses less digits than its factorization.

85729535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17145912.

The product of its digits is 378000, while the sum is 44.

The square root of 85729535 is about 9259.0245166540. The cubic root of 85729535 is about 440.9372840132.

The spelling of 85729535 in words is "eighty-five million, seven hundred twenty-nine thousand, five hundred thirty-five".