85768066 has 4 divisors (see below), whose sum is σ = 128652102. Its totient is φ = 42884032.

The previous prime is 85768063. The next prime is 85768093. The reversal of 85768066 is 66086758.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 22231225 = 7971^2 + 4715^2 .

It is a super-2 number, since 2×85768066² = 14712322290760712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85768061) 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 as a sum of consecutive naturals, namely, 21442015 + ... + 21442018.

Almost surely, 2^85768066 is an apocalyptic number.

85768066 is a deficient number, since it is larger than the sum of its proper divisors (42884036).

85768066 is a wasteful number, since it uses less digits than its factorization.

85768066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42884035.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 85768066 is about 9261.1050096627. The cubic root of 85768066 is about 441.0033336338.

The spelling of 85768066 in words is "eighty-five million, seven hundred sixty-eight thousand, sixty-six".