78101713 has 2 divisors, whose sum is σ = 78101714. Its totient is φ = 78101712.

The previous prime is 78101693. The next prime is 78101731. The reversal of 78101713 is 31710187.

Together with next prime (78101731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50936769 + 27164944 = 7137^2 + 5212^2 .

It is an emirp because it is prime and its reverse (31710187) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78101713 is a prime.

It is not a weakly prime, because it can be changed into another prime (78101773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39050856 + 39050857.

It is an arithmetic number, because the mean of its divisors is an integer number (39050857).

Almost surely, 2^78101713 is an apocalyptic number.

It is an amenable number.

78101713 is a deficient number, since it is larger than the sum of its proper divisors (1).

78101713 is an equidigital number, since it uses as much as digits as its factorization.

78101713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 78101713 is about 8837.5173550042. The cubic root of 78101713 is about 427.4515075577.

The spelling of 78101713 in words is "seventy-eight million, one hundred one thousand, seven hundred thirteen".