123717 has 16 divisors (see below), whose sum is σ = 188928. Its totient is φ = 71280.

The previous prime is 123707. The next prime is 123719. The reversal of 123717 is 717321.

123717 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 123717 - 2⁴ = 123701 is a prime.

123717 is strictly pandigital in base 7.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 123693 and 123702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (11808).

2¹²³⁷¹⁷ is an apocalyptic number.

It is an amenable number.

123717 is a deficient number, since it is larger than the sum of its proper divisors (65211).

123717 is a wasteful number, since it uses less digits than its factorization.

123717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its digits is 294, while the sum is 21.

The square root of 123717 is about 351.7342747018. The cubic root of 123717 is about 49.8283446969.

The spelling of 123717 in words is "one hundred twenty-three thousand, seven hundred seventeen", and thus it is an iban number.