85075665 has 16 divisors (see below), whose sum is σ = 137026176. Its totient is φ = 45072000.

The previous prime is 85075621. The next prime is 85075717. The reversal of 85075665 is 56657058.

It is not a de Polignac number, because 85075665 - 2⁹ = 85075153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16516 + ... + 21045.

It is an arithmetic number, because the mean of its divisors is an integer number (8564136).

Almost surely, 2^85075665 is an apocalyptic number.

It is an amenable number.

85075665 is a deficient number, since it is larger than the sum of its proper divisors (51950511).

85075665 is a wasteful number, since it uses less digits than its factorization.

85075665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37720.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 85075665 is about 9223.6470552596. The cubic root of 85075665 is about 439.8133936666.

The spelling of 85075665 in words is "eighty-five million, seventy-five thousand, six hundred sixty-five".