85170668 has 48 divisors (see below), whose sum is σ = 166973184. Its totient is φ = 37688640.

The previous prime is 85170661. The next prime is 85170691. The reversal of 85170668 is 86607158.

It is not an unprimeable number, because it can be changed into a prime (85170661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492230 + ... + 492402.

It is an arithmetic number, because the mean of its divisors is an integer number (3478608).

Almost surely, 2^85170668 is an apocalyptic number.

It is an amenable number.

85170668 is a deficient number, since it is larger than the sum of its proper divisors (81802516).

85170668 is a wasteful number, since it uses less digits than its factorization.

85170668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 85170668 is about 9228.7955877243. The cubic root of 85170668 is about 439.9770442569.

The spelling of 85170668 in words is "eighty-five million, one hundred seventy thousand, six hundred sixty-eight".