85785805 has 8 divisors (see below), whose sum is σ = 117649152. Its totient is φ = 58824528.

The previous prime is 85785803. The next prime is 85785811. The reversal of 85785805 is 50858758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85785805 - 2¹ = 85785803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85785803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225477 + ... + 1225546.

It is an arithmetic number, because the mean of its divisors is an integer number (14706144).

Almost surely, 2^85785805 is an apocalyptic number.

It is an amenable number.

85785805 is a deficient number, since it is larger than the sum of its proper divisors (31863347).

85785805 is a wasteful number, since it uses less digits than its factorization.

85785805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451035.

The product of its (nonzero) digits is 448000, while the sum is 46.

The square root of 85785805 is about 9262.0626752360. The cubic root of 85785805 is about 441.0337350766.

The spelling of 85785805 in words is "eighty-five million, seven hundred eighty-five thousand, eight hundred five".