85066915 has 4 divisors (see below), whose sum is σ = 102080304. Its totient is φ = 68053528.

The previous prime is 85066871. The next prime is 85066921. The reversal of 85066915 is 51966058.

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

It is a cyclic number.

It is not a de Polignac number, because 85066915 - 2⁹ = 85066403 is a prime.

It is a Duffinian 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, 8506687 + ... + 8506696.

It is an arithmetic number, because the mean of its divisors is an integer number (25520076).

Almost surely, 2^85066915 is an apocalyptic number.

85066915 is a deficient number, since it is larger than the sum of its proper divisors (17013389).

85066915 is a wasteful number, since it uses less digits than its factorization.

85066915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17013388.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 85066915 is about 9223.1727187557. The cubic root of 85066915 is about 439.7983149359.

The spelling of 85066915 in words is "eighty-five million, sixty-six thousand, nine hundred fifteen".