67671838 has 16 divisors (see below), whose sum is σ = 109586736. Its totient is φ = 31155840.

The previous prime is 67671817. The next prime is 67671839. The reversal of 67671838 is 83817676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67671839) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8253 + ... + 14263.

It is an arithmetic number, because the mean of its divisors is an integer number (6849171).

Almost surely, 2^67671838 is an apocalyptic number.

67671838 is a deficient number, since it is larger than the sum of its proper divisors (41914898).

67671838 is a wasteful number, since it uses less digits than its factorization.

67671838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459.

The product of its digits is 338688, while the sum is 46.

The square root of 67671838 is about 8226.2894429992. The cubic root of 67671838 is about 407.5078608894.

The spelling of 67671838 in words is "sixty-seven million, six hundred seventy-one thousand, eight hundred thirty-eight".