85706 has 4 divisors (see below), whose sum is σ = 128562. Its totient is φ = 42852.

The previous prime is 85703. The next prime is 85711. The reversal of 85706 is 60758.

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

It can be written as a sum of positive squares in only one way, i.e., 43681 + 42025 = 209^2 + 205^2 .

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 85706.

It is not an unprimeable number, because it can be changed into a prime (85703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425 + ... + 21428.

2⁸⁵⁷⁰⁶ is an apocalyptic number.

85706 is a deficient number, since it is larger than the sum of its proper divisors (42856).

85706 is a wasteful number, since it uses less digits than its factorization.

85706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42855.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 85706 is about 292.7558709915. The cubic root of 85706 is about 44.0896930714.

The spelling of 85706 in words is "eighty-five thousand, seven hundred six".