67686338 has 8 divisors (see below), whose sum is σ = 101818188. Its totient is φ = 33746944.

The previous prime is 67686323. The next prime is 67686371. The reversal of 67686338 is 83368676.

It can be written as a sum of positive squares in 2 ways, for example, as 67683529 + 2809 = 8227^2 + 53^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 67686292 and 67686301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47231 + ... + 48642.

Almost surely, 2^67686338 is an apocalyptic number.

67686338 is a deficient number, since it is larger than the sum of its proper divisors (34131850).

67686338 is a wasteful number, since it uses less digits than its factorization.

67686338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96228.

The product of its digits is 870912, while the sum is 47.

The square root of 67686338 is about 8227.1707165951. The cubic root of 67686338 is about 407.5369642909.

The spelling of 67686338 in words is "sixty-seven million, six hundred eighty-six thousand, three hundred thirty-eight".