123684317 has 8 divisors (see below), whose sum is σ = 129548160. Its totient is φ = 117861040.

The previous prime is 123684311. The next prime is 123684347. The reversal of 123684317 is 713486321.

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

It is a cyclic number.

It is not a de Polignac number, because 123684317 - 2¹⁴ = 123667933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123684311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (16193520).

Almost surely, 2^123684317 is an apocalyptic number.

It is an amenable number.

123684317 is a deficient number, since it is larger than the sum of its proper divisors (5863843).

123684317 is a wasteful number, since it uses less digits than its factorization.

123684317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283.

The product of its digits is 24192, while the sum is 35.

The square root of 123684317 is about 11121.3451074949. The cubic root of 123684317 is about 498.2395650117.

The spelling of 123684317 in words is "one hundred twenty-three million, six hundred eighty-four thousand, three hundred seventeen".