123886 has 8 divisors (see below), whose sum is σ = 212400. Its totient is φ = 53088.

The previous prime is 123863. The next prime is 123887. The reversal of 123886 is 688321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123887) by changing a digit.

123886 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 in 3 ways as a sum of consecutive naturals, for example, 4411 + ... + 4438.

It is an arithmetic number, because the mean of its divisors is an integer number (26550).

2¹²³⁸⁸⁶ is an apocalyptic number.

123886 is a deficient number, since it is larger than the sum of its proper divisors (88514).

123886 is an equidigital number, since it uses as much as digits as its factorization.

123886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8858.

The product of its digits is 2304, while the sum is 28.

The square root of 123886 is about 351.9744308895. The cubic root of 123886 is about 49.8510232259.

The spelling of 123886 in words is "one hundred twenty-three thousand, eight hundred eighty-six".