68071583 has 2 divisors, whose sum is σ = 68071584. Its totient is φ = 68071582.

The previous prime is 68071489. The next prime is 68071607. The reversal of 68071583 is 38517086.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68071583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68071483) 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, 34035791 + 34035792.

It is an arithmetic number, because the mean of its divisors is an integer number (34035792).

Almost surely, 2^68071583 is an apocalyptic number.

68071583 is a deficient number, since it is larger than the sum of its proper divisors (1).

68071583 is an equidigital number, since it uses as much as digits as its factorization.

68071583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 68071583 is about 8250.5504664840. The cubic root of 68071583 is about 408.3086840412.

The spelling of 68071583 in words is "sixty-eight million, seventy-one thousand, five hundred eighty-three".