68882129 has 2 divisors, whose sum is σ = 68882130. Its totient is φ = 68882128.

The previous prime is 68882117. The next prime is 68882131. The reversal of 68882129 is 92128886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60031504 + 8850625 = 7748^2 + 2975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68882129 is a prime.

It is a Sophie Germain prime.

Together with 68882131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68882129.

It is not a weakly prime, because it can be changed into another prime (68882179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34441064 + 34441065.

It is an arithmetic number, because the mean of its divisors is an integer number (34441065).

Almost surely, 2^68882129 is an apocalyptic number.

It is an amenable number.

68882129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68882129 is an equidigital number, since it uses as much as digits as its factorization.

68882129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 44.

The square root of 68882129 is about 8299.5258298291. The cubic root of 68882129 is about 409.9229063852.

The spelling of 68882129 in words is "sixty-eight million, eight hundred eighty-two thousand, one hundred twenty-nine".