85778835 has 8 divisors (see below), whose sum is σ = 137246160. Its totient is φ = 45748704.

The previous prime is 85778831. The next prime is 85778843. The reversal of 85778835 is 53887758.

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

It is not a de Polignac number, because 85778835 - 2² = 85778831 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (85778831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859280 + ... + 2859309.

It is an arithmetic number, because the mean of its divisors is an integer number (17155770).

Almost surely, 2^85778835 is an apocalyptic number.

85778835 is a deficient number, since it is larger than the sum of its proper divisors (51467325).

85778835 is a wasteful number, since it uses less digits than its factorization.

85778835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718597.

The product of its digits is 1881600, while the sum is 51.

The square root of 85778835 is about 9261.6864015146. The cubic root of 85778835 is about 441.0217902551.

The spelling of 85778835 in words is "eighty-five million, seven hundred seventy-eight thousand, eight hundred thirty-five".