67754321 has 2 divisors, whose sum is σ = 67754322. Its totient is φ = 67754320.

The previous prime is 67754317. The next prime is 67754339. The reversal of 67754321 is 12345776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62980096 + 4774225 = 7936^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 67754321 - 2² = 67754317 is a prime.

It is not a weakly prime, because it can be changed into another prime (67754371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33877160 + 33877161.

It is an arithmetic number, because the mean of its divisors is an integer number (33877161).

Almost surely, 2^67754321 is an apocalyptic number.

It is an amenable number.

67754321 is a deficient number, since it is larger than the sum of its proper divisors (1).

67754321 is an equidigital number, since it uses as much as digits as its factorization.

67754321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 67754321 is about 8231.3012944491. The cubic root of 67754321 is about 407.6733596884.

The spelling of 67754321 in words is "sixty-seven million, seven hundred fifty-four thousand, three hundred twenty-one".