67685366 has 24 divisors (see below), whose sum is σ = 123243120. Its totient is φ = 27745872.

The previous prime is 67685351. The next prime is 67685407. The reversal of 67685366 is 66358676.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67685366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12761 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (5135130).

Almost surely, 2^67685366 is an apocalyptic number.

67685366 is a deficient number, since it is larger than the sum of its proper divisors (55557754).

67685366 is a wasteful number, since it uses less digits than its factorization.

67685366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30068 (or 30061 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 67685366 is about 8227.1116438274. Note that the first 3 decimals coincide. The cubic root of 67685366 is about 407.5350134894.

The spelling of 67685366 in words is "sixty-seven million, six hundred eighty-five thousand, three hundred sixty-six".