68085713 has 4 divisors (see below), whose sum is σ = 69018468. Its totient is φ = 67152960.

The previous prime is 68085701. The next prime is 68085737. The reversal of 68085713 is 31758086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31758086 = 2 ⋅15879043.

It can be written as a sum of positive squares in 2 ways, for example, as 22819729 + 45265984 = 4777^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 68085713 - 2¹⁰ = 68084689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68085763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466268 + ... + 466413.

It is an arithmetic number, because the mean of its divisors is an integer number (17254617).

Almost surely, 2^68085713 is an apocalyptic number.

It is an amenable number.

68085713 is a deficient number, since it is larger than the sum of its proper divisors (932755).

68085713 is an equidigital number, since it uses as much as digits as its factorization.

68085713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932754.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 68085713 is about 8251.4067285524. The cubic root of 68085713 is about 408.3369337273.

It can be divided in two parts, 6808 and 5713, that added together give a palindrome (12521).

The spelling of 68085713 in words is "sixty-eight million, eighty-five thousand, seven hundred thirteen".