68405822 has 8 divisors (see below), whose sum is σ = 105382056. Its totient is φ = 33278472.

The previous prime is 68405801. The next prime is 68405851. The reversal of 68405822 is 22850486.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462128 + ... + 462275.

It is an arithmetic number, because the mean of its divisors is an integer number (13172757).

Almost surely, 2^68405822 is an apocalyptic number.

68405822 is a deficient number, since it is larger than the sum of its proper divisors (36976234).

68405822 is a wasteful number, since it uses less digits than its factorization.

68405822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924442.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 68405822 is about 8270.7812206587. The cubic root of 68405822 is about 408.9758735019.

The spelling of 68405822 in words is "sixty-eight million, four hundred five thousand, eight hundred twenty-two".