85641695 has 4 divisors (see below), whose sum is σ = 102770040. Its totient is φ = 68513352.

The previous prime is 85641679. The next prime is 85641697. The reversal of 85641695 is 59614658.

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 85641695 - 2⁴ = 85641679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85641697) 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, 8564165 + ... + 8564174.

It is an arithmetic number, because the mean of its divisors is an integer number (25692510).

Almost surely, 2^85641695 is an apocalyptic number.

85641695 is a deficient number, since it is larger than the sum of its proper divisors (17128345).

85641695 is a wasteful number, since it uses less digits than its factorization.

85641695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128344.

The product of its digits is 259200, while the sum is 44.

The square root of 85641695 is about 9254.2798207100. The cubic root of 85641695 is about 440.7866351653.

The spelling of 85641695 in words is "eighty-five million, six hundred forty-one thousand, six hundred ninety-five".