68340403 has 2 divisors, whose sum is σ = 68340404. Its totient is φ = 68340402.

The previous prime is 68340401. The next prime is 68340407. The reversal of 68340403 is 30404386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68340403 - 2¹ = 68340401 is a prime.

Together with 68340401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68340401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34170201 + 34170202.

It is an arithmetic number, because the mean of its divisors is an integer number (34170202).

Almost surely, 2^68340403 is an apocalyptic number.

68340403 is a deficient number, since it is larger than the sum of its proper divisors (1).

68340403 is an equidigital number, since it uses as much as digits as its factorization.

68340403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 68340403 is about 8266.8254487439. The cubic root of 68340403 is about 408.8454590367.

Adding to 68340403 its reverse (30404386), we get a palindrome (98744789).

The spelling of 68340403 in words is "sixty-eight million, three hundred forty thousand, four hundred three".