89686 has 4 divisors (see below), whose sum is σ = 134532. Its totient is φ = 44842.

The previous prime is 89681. The next prime is 89689. The reversal of 89686 is 68698.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89681) by changing a digit.

89686 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22420 + ... + 22423.

It is an arithmetic number, because the mean of its divisors is an integer number (33633).

2⁸⁹⁶⁸⁶ is an apocalyptic number.

89686 is a deficient number, since it is larger than the sum of its proper divisors (44846).

89686 is a wasteful number, since it uses less digits than its factorization.

89686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44845.

The product of its digits is 20736, while the sum is 37.

The square root of 89686 is about 299.4762094057. The cubic root of 89686 is about 44.7618696602.

The spelling of 89686 in words is "eighty-nine thousand, six hundred eighty-six".