85660863 has 4 divisors (see below), whose sum is σ = 114214488. Its totient is φ = 57107240.

The previous prime is 85660829. The next prime is 85660871. The reversal of 85660863 is 36806658.

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 85660863 - 2¹⁰ = 85659839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85660063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14276808 + ... + 14276813.

It is an arithmetic number, because the mean of its divisors is an integer number (28553622).

Almost surely, 2^85660863 is an apocalyptic number.

85660863 is a deficient number, since it is larger than the sum of its proper divisors (28553625).

85660863 is a wasteful number, since it uses less digits than its factorization.

85660863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28553624.

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

The square root of 85660863 is about 9255.3153917087. The cubic root of 85660863 is about 440.8195177776.

The spelling of 85660863 in words is "eighty-five million, six hundred sixty thousand, eight hundred sixty-three".