85705241 has 4 divisors (see below), whose sum is σ = 85889232. Its totient is φ = 85521252.

The previous prime is 85705231. The next prime is 85705253. The reversal of 85705241 is 14250758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14250758 = 2 ⋅7125379.

It is a cyclic number.

It is not a de Polignac number, because 85705241 - 2¹⁰ = 85704217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85705198 and 85705207.

It is not an unprimeable number, because it can be changed into a prime (85705231) 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, 91295 + ... + 92228.

It is an arithmetic number, because the mean of its divisors is an integer number (21472308).

Almost surely, 2^85705241 is an apocalyptic number.

It is an amenable number.

85705241 is a deficient number, since it is larger than the sum of its proper divisors (183991).

85705241 is a wasteful number, since it uses less digits than its factorization.

85705241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183990.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 85705241 is about 9257.7125144390. The cubic root of 85705241 is about 440.8956292035.

Adding to 85705241 its reverse (14250758), we get a palindrome (99955999).

The spelling of 85705241 in words is "eighty-five million, seven hundred five thousand, two hundred forty-one".