68217367 has 4 divisors (see below), whose sum is σ = 70569720. Its totient is φ = 65865016.

The previous prime is 68217349. The next prime is 68217377. The reversal of 68217367 is 76371286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68217367 - 2¹⁹ = 67693079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68217377) 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 in 3 ways as a sum of consecutive naturals, for example, 1176133 + ... + 1176190.

It is an arithmetic number, because the mean of its divisors is an integer number (17642430).

Almost surely, 2^68217367 is an apocalyptic number.

68217367 is a deficient number, since it is larger than the sum of its proper divisors (2352353).

68217367 is a wasteful number, since it uses less digits than its factorization.

68217367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352352.

The product of its digits is 84672, while the sum is 40.

The square root of 68217367 is about 8259.3805457794. The cubic root of 68217367 is about 408.5999579605.

The spelling of 68217367 in words is "sixty-eight million, two hundred seventeen thousand, three hundred sixty-seven".