85917705 has 16 divisors (see below), whose sum is σ = 138044544. Its totient is φ = 45630720.

The previous prime is 85917703. The next prime is 85917731. The reversal of 85917705 is 50771958.

It is not a de Polignac number, because 85917705 - 2¹ = 85917703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85917701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8269 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (8627784).

Almost surely, 2^85917705 is an apocalyptic number.

It is an amenable number.

85917705 is a deficient number, since it is larger than the sum of its proper divisors (52126839).

85917705 is a wasteful number, since it uses less digits than its factorization.

85917705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24016.

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 85917705 is about 9269.1803844784. The cubic root of 85917705 is about 441.2596565283.

The spelling of 85917705 in words is "eighty-five million, nine hundred seventeen thousand, seven hundred five".