68391322 has 8 divisors (see below), whose sum is σ = 104118336. Its totient is φ = 33685212.

The previous prime is 68391307. The next prime is 68391331. The reversal of 68391322 is 22319386.

It is a happy number.

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

It is an unprimeable number.

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, 255058 + ... + 255325.

It is an arithmetic number, because the mean of its divisors is an integer number (13014792).

Almost surely, 2^68391322 is an apocalyptic number.

68391322 is a deficient number, since it is larger than the sum of its proper divisors (35727014).

68391322 is a wasteful number, since it uses less digits than its factorization.

68391322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510452.

The product of its digits is 15552, while the sum is 34.

The square root of 68391322 is about 8269.9045943711. The cubic root of 68391322 is about 408.9469745522.

The spelling of 68391322 in words is "sixty-eight million, three hundred ninety-one thousand, three hundred twenty-two".