85648786 has 8 divisors (see below), whose sum is σ = 128671884. Its totient is φ = 42758160.

The previous prime is 85648781. The next prime is 85648807. The reversal of 85648786 is 68784658.

It can be written as a sum of positive squares in 2 ways, for example, as 69205761 + 16443025 = 8319^2 + 4055^2 .

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

It is not an unprimeable number, because it can be changed into a prime (85648781) 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 3 ways as a sum of consecutive naturals, for example, 31485 + ... + 34096.

Almost surely, 2^85648786 is an apocalyptic number.

85648786 is a deficient number, since it is larger than the sum of its proper divisors (43023098).

85648786 is a wasteful number, since it uses less digits than its factorization.

85648786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66236.

The product of its digits is 2580480, while the sum is 52.

The square root of 85648786 is about 9254.6629328139. The cubic root of 85648786 is about 440.7988003136.

The spelling of 85648786 in words is "eighty-five million, six hundred forty-eight thousand, seven hundred eighty-six".