85853945 has 4 divisors (see below), whose sum is σ = 103024740. Its totient is φ = 68683152.

The previous prime is 85853923. The next prime is 85853969. The reversal of 85853945 is 54935858.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19333609 + 66520336 = 4397^2 + 8156^2 .

It is a cyclic number.

It is not a de Polignac number, because 85853945 - 2⁶ = 85853881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85853945.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8585390 + ... + 8585399.

It is an arithmetic number, because the mean of its divisors is an integer number (25756185).

Almost surely, 2^85853945 is an apocalyptic number.

It is an amenable number.

85853945 is a deficient number, since it is larger than the sum of its proper divisors (17170795).

85853945 is a wasteful number, since it uses less digits than its factorization.

85853945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170794.

The product of its digits is 864000, while the sum is 47.

The square root of 85853945 is about 9265.7403913557. The cubic root of 85853945 is about 441.1504757791.

The spelling of 85853945 in words is "eighty-five million, eight hundred fifty-three thousand, nine hundred forty-five".