123684713 has 2 divisors, whose sum is σ = 123684714. Its totient is φ = 123684712.

The previous prime is 123684697. The next prime is 123684733. The reversal of 123684713 is 317486321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115175824 + 8508889 = 10732^2 + 2917^2 .

It is an emirp because it is prime and its reverse (317486321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123684713 - 2⁴ = 123684697 is a prime.

It is not a weakly prime, because it can be changed into another prime (123684733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61842356 + 61842357.

It is an arithmetic number, because the mean of its divisors is an integer number (61842357).

Almost surely, 2^123684713 is an apocalyptic number.

It is an amenable number.

123684713 is a deficient number, since it is larger than the sum of its proper divisors (1).

123684713 is an equidigital number, since it uses as much as digits as its factorization.

123684713 is an odious number, because the sum of its binary digits is odd.

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

The square root of 123684713 is about 11121.3629110824. The cubic root of 123684713 is about 498.2400967489.

The spelling of 123684713 in words is "one hundred twenty-three million, six hundred eighty-four thousand, seven hundred thirteen".