85645705 has 8 divisors (see below), whose sum is σ = 103139712. Its totient is φ = 68273328.

The previous prime is 85645699. The next prime is 85645727. The reversal of 85645705 is 50754658.

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

It is a cyclic number.

It is not a de Polignac number, because 85645705 - 2⁷ = 85645577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28849 + ... + 31678.

It is an arithmetic number, because the mean of its divisors is an integer number (12892464).

Almost surely, 2^85645705 is an apocalyptic number.

It is an amenable number.

85645705 is a deficient number, since it is larger than the sum of its proper divisors (17494007).

85645705 is a wasteful number, since it uses less digits than its factorization.

85645705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60815.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 85645705 is about 9254.4964746873. The cubic root of 85645705 is about 440.7935147069.

The spelling of 85645705 in words is "eighty-five million, six hundred forty-five thousand, seven hundred five".