68342287 has 8 divisors (see below), whose sum is σ = 74252304. Its totient is φ = 62525568.

The previous prime is 68342279. The next prime is 68342311. The reversal of 68342287 is 78224386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68342287 - 2³ = 68342279 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 (68342207) 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 7 ways as a sum of consecutive naturals, for example, 21793 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (9281538).

Almost surely, 2^68342287 is an apocalyptic number.

68342287 is a deficient number, since it is larger than the sum of its proper divisors (5910017).

68342287 is a wasteful number, since it uses less digits than its factorization.

68342287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46649.

The product of its digits is 129024, while the sum is 40.

The square root of 68342287 is about 8266.9393973828. The cubic root of 68342287 is about 408.8492160030.

The spelling of 68342287 in words is "sixty-eight million, three hundred forty-two thousand, two hundred eighty-seven".