68782829 has 2 divisors, whose sum is σ = 68782830. Its totient is φ = 68782828.

The previous prime is 68782787. The next prime is 68782837. The reversal of 68782829 is 92828786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48622729 + 20160100 = 6973^2 + 4490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68782829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68782529) 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, 34391414 + 34391415.

It is an arithmetic number, because the mean of its divisors is an integer number (34391415).

Almost surely, 2^68782829 is an apocalyptic number.

It is an amenable number.

68782829 is a deficient number, since it is larger than the sum of its proper divisors (1).

68782829 is an equidigital number, since it uses as much as digits as its factorization.

68782829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 50.

The square root of 68782829 is about 8293.5414028025. The cubic root of 68782829 is about 409.7258309799.

The spelling of 68782829 in words is "sixty-eight million, seven hundred eighty-two thousand, eight hundred twenty-nine".