85668650 has 12 divisors (see below), whose sum is σ = 159343782. Its totient is φ = 34267440.

The previous prime is 85668613. The next prime is 85668673. The reversal of 85668650 is 5686658.

It can be written as a sum of positive squares in 3 ways, for example, as 75047569 + 10621081 = 8663^2 + 3259^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 856637 + ... + 856736.

Almost surely, 2^85668650 is an apocalyptic number.

85668650 is a deficient number, since it is larger than the sum of its proper divisors (73675132).

85668650 is a wasteful number, since it uses less digits than its factorization.

85668650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713385 (or 1713380 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 85668650 is about 9255.7360593310. The cubic root of 85668650 is about 440.8328749376.

The spelling of 85668650 in words is "eighty-five million, six hundred sixty-eight thousand, six hundred fifty".