68838293 has 2 divisors, whose sum is σ = 68838294. Its totient is φ = 68838292.

The previous prime is 68838277. The next prime is 68838331. The reversal of 68838293 is 39283886.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58033924 + 10804369 = 7618^2 + 3287^2 .

It is a cyclic number.

It is not a de Polignac number, because 68838293 - 2⁴ = 68838277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68838893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34419146 + 34419147.

It is an arithmetic number, because the mean of its divisors is an integer number (34419147).

Almost surely, 2^68838293 is an apocalyptic number.

It is an amenable number.

68838293 is a deficient number, since it is larger than the sum of its proper divisors (1).

68838293 is an equidigital number, since it uses as much as digits as its factorization.

68838293 is an evil number, because the sum of its binary digits is even.

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

The square root of 68838293 is about 8296.8845357761. The cubic root of 68838293 is about 409.8359307841.

The spelling of 68838293 in words is "sixty-eight million, eight hundred thirty-eight thousand, two hundred ninety-three".