67973988 has 12 divisors (see below), whose sum is σ = 158606000. Its totient is φ = 22657992.

The previous prime is 67973987. The next prime is 67974019. The reversal of 67973988 is 88937976.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (67973981) 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, 2832238 + ... + 2832261.

Almost surely, 2^67973988 is an apocalyptic number.

It is an amenable number.

67973988 is an abundant number, since it is smaller than the sum of its proper divisors (90632012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67973988 is a wasteful number, since it uses less digits than its factorization.

67973988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5664506 (or 5664504 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 67973988 is about 8244.6338912046. The cubic root of 67973988 is about 408.1134584499.

The spelling of 67973988 in words is "sixty-seven million, nine hundred seventy-three thousand, nine hundred eighty-eight".