68030321 has 2 divisors, whose sum is σ = 68030322. Its totient is φ = 68030320.

The previous prime is 68030299. The next prime is 68030329. The reversal of 68030321 is 12303086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 790321 = 8200^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 68030321 - 2¹⁴ = 68013937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68030329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34015160 + 34015161.

It is an arithmetic number, because the mean of its divisors is an integer number (34015161).

Almost surely, 2^68030321 is an apocalyptic number.

It is an amenable number.

68030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

68030321 is an equidigital number, since it uses as much as digits as its factorization.

68030321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 68030321 is about 8248.0495270094. The cubic root of 68030321 is about 408.2261677771.

The spelling of 68030321 in words is "sixty-eight million, thirty thousand, three hundred twenty-one".