85808445 has 16 divisors (see below), whose sum is σ = 137833920. Its totient is φ = 45584384.

The previous prime is 85808363. The next prime is 85808447. The reversal of 85808445 is 54480858.

It is a cyclic number.

It is not a de Polignac number, because 85808445 - 2⁸ = 85808189 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 85808397 and 85808406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85808447) 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, 7275 + ... + 14984.

It is an arithmetic number, because the mean of its divisors is an integer number (8614620).

Almost surely, 2^85808445 is an apocalyptic number.

It is an amenable number.

85808445 is a deficient number, since it is larger than the sum of its proper divisors (52025475).

85808445 is a wasteful number, since it uses less digits than its factorization.

85808445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524.

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 85808445 is about 9263.2847845675. The cubic root of 85808445 is about 441.0725298613.

The spelling of 85808445 in words is "eighty-five million, eight hundred eight thousand, four hundred forty-five".