67688117 has 8 divisors (see below), whose sum is σ = 80025600. Its totient is φ = 56017584.

The previous prime is 67688113. The next prime is 67688129. The reversal of 67688117 is 71188676.

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

It is not a de Polignac number, because 67688117 - 2² = 67688113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67688113) 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, 166517 + ... + 166922.

It is an arithmetic number, because the mean of its divisors is an integer number (10003200).

Almost surely, 2^67688117 is an apocalyptic number.

It is an amenable number.

67688117 is a deficient number, since it is larger than the sum of its proper divisors (12337483).

67688117 is a wasteful number, since it uses less digits than its factorization.

67688117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333475.

The product of its digits is 112896, while the sum is 44.

The square root of 67688117 is about 8227.2788332474. The cubic root of 67688117 is about 407.5405346909.

The spelling of 67688117 in words is "sixty-seven million, six hundred eighty-eight thousand, one hundred seventeen".