68378593 has 2 divisors, whose sum is σ = 68378594. Its totient is φ = 68378592.

The previous prime is 68378521. The next prime is 68378599. The reversal of 68378593 is 39587386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 18769 = 8268^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 68378593 - 2⁹ = 68378081 is a prime.

It is not a weakly prime, because it can be changed into another prime (68378599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34189296 + 34189297.

It is an arithmetic number, because the mean of its divisors is an integer number (34189297).

Almost surely, 2^68378593 is an apocalyptic number.

It is an amenable number.

68378593 is a deficient number, since it is larger than the sum of its proper divisors (1).

68378593 is an equidigital number, since it uses as much as digits as its factorization.

68378593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 68378593 is about 8269.1349608045. The cubic root of 68378593 is about 408.9216018935.

The spelling of 68378593 in words is "sixty-eight million, three hundred seventy-eight thousand, five hundred ninety-three".