68759413 has 2 divisors, whose sum is σ = 68759414. Its totient is φ = 68759412.

The previous prime is 68759399. The next prime is 68759417. The reversal of 68759413 is 31495786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50594769 + 18164644 = 7113^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 68759413 - 2⁵ = 68759381 is a prime.

It is a super-2 number, since 2×68759413² = 9455713752209138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68759413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68759417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34379706 + 34379707.

It is an arithmetic number, because the mean of its divisors is an integer number (34379707).

Almost surely, 2^68759413 is an apocalyptic number.

It is an amenable number.

68759413 is a deficient number, since it is larger than the sum of its proper divisors (1).

68759413 is an equidigital number, since it uses as much as digits as its factorization.

68759413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 68759413 is about 8292.1295817178. The cubic root of 68759413 is about 409.6793308619.

The spelling of 68759413 in words is "sixty-eight million, seven hundred fifty-nine thousand, four hundred thirteen".