68386321 has 8 divisors (see below), whose sum is σ = 70862400. Its totient is φ = 65918160.

The previous prime is 68386313. The next prime is 68386411. The reversal of 68386321 is 12368386.

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

It is not a de Polignac number, because 68386321 - 2³ = 68386313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68386421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19836 + ... + 23026.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2^68386321 is an apocalyptic number.

It is an amenable number.

68386321 is a deficient number, since it is larger than the sum of its proper divisors (2476079).

68386321 is a wasteful number, since it uses less digits than its factorization.

68386321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959.

The product of its digits is 41472, while the sum is 37.

The square root of 68386321 is about 8269.6022274351. The cubic root of 68386321 is about 408.9370064568.

The spelling of 68386321 in words is "sixty-eight million, three hundred eighty-six thousand, three hundred twenty-one".