68216394 has 8 divisors (see below), whose sum is σ = 136432800. Its totient is φ = 22738796.

The previous prime is 68216389. The next prime is 68216417. The reversal of 68216394 is 49361286.

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

68216394 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5684694 + ... + 5684705.

It is an arithmetic number, because the mean of its divisors is an integer number (17054100).

Almost surely, 2^68216394 is an apocalyptic number.

68216394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68216394 is a wasteful number, since it uses less digits than its factorization.

68216394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11369404.

The product of its digits is 62208, while the sum is 39.

The square root of 68216394 is about 8259.3216428469. The cubic root of 68216394 is about 408.5980152995.

The spelling of 68216394 in words is "sixty-eight million, two hundred sixteen thousand, three hundred ninety-four".