67668593 has 8 divisors (see below), whose sum is σ = 68870400. Its totient is φ = 66472560.

The previous prime is 67668563. The next prime is 67668613. The reversal of 67668593 is 39586676.

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 67668593 - 2⁶ = 67668529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67668533) 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, 27008 + ... + 29406.

It is an arithmetic number, because the mean of its divisors is an integer number (8608800).

Almost surely, 2^67668593 is an apocalyptic number.

It is an amenable number.

67668593 is a deficient number, since it is larger than the sum of its proper divisors (1201807).

67668593 is a wasteful number, since it uses less digits than its factorization.

67668593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887.

The product of its digits is 1632960, while the sum is 50.

The square root of 67668593 is about 8226.0922071175. The cubic root of 67668593 is about 407.5013471796.

The spelling of 67668593 in words is "sixty-seven million, six hundred sixty-eight thousand, five hundred ninety-three".