68377429 has 2 divisors, whose sum is σ = 68377430. Its totient is φ = 68377428.

The previous prime is 68377411. The next prime is 68377469. The reversal of 68377429 is 92477386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65173329 + 3204100 = 8073^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 68377429 - 2⁷ = 68377301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68377469) 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, 34188714 + 34188715.

It is an arithmetic number, because the mean of its divisors is an integer number (34188715).

Almost surely, 2^68377429 is an apocalyptic number.

It is an amenable number.

68377429 is a deficient number, since it is larger than the sum of its proper divisors (1).

68377429 is an equidigital number, since it uses as much as digits as its factorization.

68377429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 68377429 is about 8269.0645782942. The cubic root of 68377429 is about 408.9192815403.

The spelling of 68377429 in words is "sixty-eight million, three hundred seventy-seven thousand, four hundred twenty-nine".