68122817 has 4 divisors (see below), whose sum is σ = 77854656. Its totient is φ = 58390980.

The previous prime is 68122811. The next prime is 68122829. The reversal of 68122817 is 71822186.

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 68122817 - 2⁴ = 68122801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68122811) 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, 4865909 + ... + 4865922.

It is an arithmetic number, because the mean of its divisors is an integer number (19463664).

Almost surely, 2^68122817 is an apocalyptic number.

It is an amenable number.

68122817 is a deficient number, since it is larger than the sum of its proper divisors (9731839).

68122817 is an equidigital number, since it uses as much as digits as its factorization.

68122817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731838.

The product of its digits is 10752, while the sum is 35.

The square root of 68122817 is about 8253.6547662233. The cubic root of 68122817 is about 408.4110960419.

The spelling of 68122817 in words is "sixty-eight million, one hundred twenty-two thousand, eight hundred seventeen".