68838923 has 2 divisors, whose sum is σ = 68838924. Its totient is φ = 68838922.

The previous prime is 68838893. The next prime is 68838929. The reversal of 68838923 is 32983886.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68838923 - 2¹² = 68834827 is a prime.

It is not a weakly prime, because it can be changed into another prime (68838929) 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, 34419461 + 34419462.

It is an arithmetic number, because the mean of its divisors is an integer number (34419462).

Almost surely, 2^68838923 is an apocalyptic number.

68838923 is a deficient number, since it is larger than the sum of its proper divisors (1).

68838923 is an equidigital number, since it uses as much as digits as its factorization.

68838923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 68838923 is about 8296.9225017473. The cubic root of 68838923 is about 409.8371810371.

The spelling of 68838923 in words is "sixty-eight million, eight hundred thirty-eight thousand, nine hundred twenty-three".