68409323 has 2 divisors, whose sum is σ = 68409324. Its totient is φ = 68409322.

The previous prime is 68409317. The next prime is 68409331. The reversal of 68409323 is 32390486.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68409323 - 2⁸ = 68409067 is a prime.

It is not a weakly prime, because it can be changed into another prime (68409353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34204661 + 34204662.

It is an arithmetic number, because the mean of its divisors is an integer number (34204662).

Almost surely, 2^68409323 is an apocalyptic number.

68409323 is a deficient number, since it is larger than the sum of its proper divisors (1).

68409323 is an equidigital number, since it uses as much as digits as its factorization.

68409323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 68409323 is about 8270.9928666394. The cubic root of 68409323 is about 408.9828504914.

The spelling of 68409323 in words is "sixty-eight million, four hundred nine thousand, three hundred twenty-three".