85187063 has 4 divisors (see below), whose sum is σ = 91739928. Its totient is φ = 78634200.

The previous prime is 85187057. The next prime is 85187071. The reversal of 85187063 is 36078158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36078158 = 2 ⋅18039079.

It is a cyclic number.

It is not a de Polignac number, because 85187063 - 2¹⁰ = 85186039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85147063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3276413 + ... + 3276438.

It is an arithmetic number, because the mean of its divisors is an integer number (22934982).

Almost surely, 2^85187063 is an apocalyptic number.

85187063 is a deficient number, since it is larger than the sum of its proper divisors (6552865).

85187063 is a wasteful number, since it uses less digits than its factorization.

85187063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552864.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 85187063 is about 9229.6837974006. The cubic root of 85187063 is about 440.0052736971.

The spelling of 85187063 in words is "eighty-five million, one hundred eighty-seven thousand, sixty-three".