68066393 has 8 divisors (see below), whose sum is σ = 70649280. Its totient is φ = 65499280.

The previous prime is 68066381. The next prime is 68066413. The reversal of 68066393 is 39366086.

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

It is a cyclic number.

It is not a de Polignac number, because 68066393 - 2¹⁰ = 68065369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68066393.

It is not an unprimeable number, because it can be changed into a prime (68066993) 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, 5246 + ... + 12792.

It is an arithmetic number, because the mean of its divisors is an integer number (8831160).

Almost surely, 2^68066393 is an apocalyptic number.

It is an amenable number.

68066393 is a deficient number, since it is larger than the sum of its proper divisors (2582887).

68066393 is a wasteful number, since it uses less digits than its factorization.

68066393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 68066393 is about 8250.2359360203. The cubic root of 68066393 is about 408.2983068479.

The spelling of 68066393 in words is "sixty-eight million, sixty-six thousand, three hundred ninety-three".