85431695 has 16 divisors (see below), whose sum is σ = 108480000. Its totient is φ = 64408608.

The previous prime is 85431667. The next prime is 85431719. The reversal of 85431695 is 59613458.

It is a cyclic number.

It is not a de Polignac number, because 85431695 - 2⁸ = 85431439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16646 + ... + 21164.

It is an arithmetic number, because the mean of its divisors is an integer number (6780000).

Almost surely, 2^85431695 is an apocalyptic number.

85431695 is a deficient number, since it is larger than the sum of its proper divisors (23048305).

85431695 is a wasteful number, since it uses less digits than its factorization.

85431695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742.

The product of its digits is 129600, while the sum is 41.

The square root of 85431695 is about 9242.9267550922. The cubic root of 85431695 is about 440.4260594138.

The spelling of 85431695 in words is "eighty-five million, four hundred thirty-one thousand, six hundred ninety-five".