68929177 has 2 divisors, whose sum is σ = 68929178. Its totient is φ = 68929176.

The previous prime is 68929171. The next prime is 68929219. The reversal of 68929177 is 77192986.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60279696 + 8649481 = 7764^2 + 2941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68929177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68929177.

It is not a weakly prime, because it can be changed into another prime (68929171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34464588 + 34464589.

It is an arithmetic number, because the mean of its divisors is an integer number (34464589).

Almost surely, 2^68929177 is an apocalyptic number.

It is an amenable number.

68929177 is a deficient number, since it is larger than the sum of its proper divisors (1).

68929177 is an equidigital number, since it uses as much as digits as its factorization.

68929177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 49.

The square root of 68929177 is about 8302.3597248011. The cubic root of 68929177 is about 410.0162139136.

The spelling of 68929177 in words is "sixty-eight million, nine hundred twenty-nine thousand, one hundred seventy-seven".