85638066 has 8 divisors (see below), whose sum is σ = 171276144. Its totient is φ = 28546020.

The previous prime is 85638041. The next prime is 85638107. The reversal of 85638066 is 66083658.

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

85638066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136500 + ... + 7136511.

It is an arithmetic number, because the mean of its divisors is an integer number (21409518).

Almost surely, 2^85638066 is an apocalyptic number.

85638066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85638066 is a wasteful number, since it uses less digits than its factorization.

85638066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273016.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 85638066 is about 9254.0837471897. The cubic root of 85638066 is about 440.7804090808.

The spelling of 85638066 in words is "eighty-five million, six hundred thirty-eight thousand, sixty-six".