67647868 has 12 divisors (see below), whose sum is σ = 121271472. Its totient is φ = 32998880.

The previous prime is 67647857. The next prime is 67647869. The reversal of 67647868 is 86874676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67647869) 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 3 ways as a sum of consecutive naturals, for example, 206080 + ... + 206407.

It is an arithmetic number, because the mean of its divisors is an integer number (10105956).

Almost surely, 2^67647868 is an apocalyptic number.

It is an amenable number.

67647868 is a deficient number, since it is larger than the sum of its proper divisors (53623604).

67647868 is a wasteful number, since it uses less digits than its factorization.

67647868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412532 (or 412530 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 67647868 is about 8224.8323995082. The cubic root of 67647868 is about 407.4597408381.

The spelling of 67647868 in words is "sixty-seven million, six hundred forty-seven thousand, eight hundred sixty-eight".