68168894 has 8 divisors (see below), whose sum is σ = 104429088. Its totient is φ = 33359200.

The previous prime is 68168873. The next prime is 68168909. The reversal of 68168894 is 49886186.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362507 + ... + 362694.

It is an arithmetic number, because the mean of its divisors is an integer number (13053636).

Almost surely, 2^68168894 is an apocalyptic number.

68168894 is a deficient number, since it is larger than the sum of its proper divisors (36260194).

68168894 is a wasteful number, since it uses less digits than its factorization.

68168894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725250.

The product of its digits is 663552, while the sum is 50.

The square root of 68168894 is about 8256.4456032847. The cubic root of 68168894 is about 408.5031558329.

The spelling of 68168894 in words is "sixty-eight million, one hundred sixty-eight thousand, eight hundred ninety-four".