68297393 has 2 divisors, whose sum is σ = 68297394. Its totient is φ = 68297392.

The previous prime is 68297363. The next prime is 68297399. The reversal of 68297393 is 39379286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 20866624 = 6887^2 + 4568^2 .

It is a cyclic number.

It is not a de Polignac number, because 68297393 - 2¹² = 68293297 is a prime.

It is not a weakly prime, because it can be changed into another prime (68297399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34148696 + 34148697.

It is an arithmetic number, because the mean of its divisors is an integer number (34148697).

Almost surely, 2^68297393 is an apocalyptic number.

It is an amenable number.

68297393 is a deficient number, since it is larger than the sum of its proper divisors (1).

68297393 is an equidigital number, since it uses as much as digits as its factorization.

68297393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 68297393 is about 8264.2236779990. The cubic root of 68297393 is about 408.7596721394.

The spelling of 68297393 in words is "sixty-eight million, two hundred ninety-seven thousand, three hundred ninety-three".