68714993 has 2 divisors, whose sum is σ = 68714994. Its totient is φ = 68714992.

The previous prime is 68714951. The next prime is 68715011. The reversal of 68714993 is 39941786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61575409 + 7139584 = 7847^2 + 2672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68714993 is a prime.

It is not a weakly prime, because it can be changed into another prime (68714923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34357496 + 34357497.

It is an arithmetic number, because the mean of its divisors is an integer number (34357497).

Almost surely, 2^68714993 is an apocalyptic number.

It is an amenable number.

68714993 is a deficient number, since it is larger than the sum of its proper divisors (1).

68714993 is an equidigital number, since it uses as much as digits as its factorization.

68714993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 68714993 is about 8289.4507055655. The cubic root of 68714993 is about 409.5910914232.

The spelling of 68714993 in words is "sixty-eight million, seven hundred fourteen thousand, nine hundred ninety-three".