67971608 has 16 divisors (see below), whose sum is σ = 127534560. Its totient is φ = 33962400.

The previous prime is 67971587. The next prime is 67971611. The reversal of 67971608 is 80617976.

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, 19778 + ... + 22958.

It is an arithmetic number, because the mean of its divisors is an integer number (7970910).

Almost surely, 2^67971608 is an apocalyptic number.

It is an amenable number.

67971608 is a deficient number, since it is larger than the sum of its proper divisors (59562952).

67971608 is a wasteful number, since it uses less digits than its factorization.

67971608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858 (or 5854 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 67971608 is about 8244.4895536352. The cubic root of 67971608 is about 408.1086952486.

The spelling of 67971608 in words is "sixty-seven million, nine hundred seventy-one thousand, six hundred eight".