67419668 has 12 divisors (see below), whose sum is σ = 121790592. Its totient is φ = 32622360.

The previous prime is 67419643. The next prime is 67419673. The reversal of 67419668 is 86691476.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271730 + ... + 271977.

It is an arithmetic number, because the mean of its divisors is an integer number (10149216).

Almost surely, 2^67419668 is an apocalyptic number.

It is an amenable number.

67419668 is a deficient number, since it is larger than the sum of its proper divisors (54370924).

67419668 is a wasteful number, since it uses less digits than its factorization.

67419668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543742 (or 543740 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 67419668 is about 8210.9480573196. The cubic root of 67419668 is about 407.0010564479.

The spelling of 67419668 in words is "sixty-seven million, four hundred nineteen thousand, six hundred sixty-eight".