67123984 has 10 divisors (see below), whose sum is σ = 130052750. Its totient is φ = 33561984.

The previous prime is 67123981. The next prime is 67124003. The reversal of 67123984 is 48932176.

It can be written as a sum of positive squares in only one way, i.e., 60217600 + 6906384 = 7760^2 + 2628^2 .

It is not an unprimeable number, because it can be changed into a prime (67123981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097609 + ... + 2097640.

It is an arithmetic number, because the mean of its divisors is an integer number (13005275).

Almost surely, 2^67123984 is an apocalyptic number.

It is an amenable number.

67123984 is a deficient number, since it is larger than the sum of its proper divisors (62928766).

67123984 is a wasteful number, since it uses less digits than its factorization.

67123984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195257 (or 4195251 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 67123984 is about 8192.9227995875. The cubic root of 67123984 is about 406.4051865025.

The spelling of 67123984 in words is "sixty-seven million, one hundred twenty-three thousand, nine hundred eighty-four".