68317229 has 4 divisors (see below), whose sum is σ = 68345376. Its totient is φ = 68289084.

The previous prime is 68317219. The next prime is 68317247. The reversal of 68317229 is 92271386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68317229 - 2¹⁶ = 68251693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68317192 and 68317201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68317219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10049 + ... + 15414.

It is an arithmetic number, because the mean of its divisors is an integer number (17086344).

Almost surely, 2^68317229 is an apocalyptic number.

It is an amenable number.

68317229 is a deficient number, since it is larger than the sum of its proper divisors (28147).

68317229 is a wasteful number, since it uses less digits than its factorization.

68317229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28146.

The product of its digits is 36288, while the sum is 38.

The square root of 68317229 is about 8265.4237035980. The cubic root of 68317229 is about 408.7992411071.

The spelling of 68317229 in words is "sixty-eight million, three hundred seventeen thousand, two hundred twenty-nine".