67533412 has 6 divisors (see below), whose sum is σ = 118183478. Its totient is φ = 33766704.

The previous prime is 67533383. The next prime is 67533413. The reversal of 67533412 is 21433576.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 24840256 = 6534^2 + 4984^2 .

It is not an unprimeable number, because it can be changed into a prime (67533413) 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 as a sum of consecutive naturals, namely, 8441673 + ... + 8441680.

Almost surely, 2^67533412 is an apocalyptic number.

It is an amenable number.

67533412 is a deficient number, since it is larger than the sum of its proper divisors (50650066).

67533412 is a wasteful number, since it uses less digits than its factorization.

67533412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16883357 (or 16883355 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 67533412 is about 8217.8715005773. The cubic root of 67533412 is about 407.2298122383.

Adding to 67533412 its reverse (21433576), we get a palindrome (88966988).

The spelling of 67533412 in words is "sixty-seven million, five hundred thirty-three thousand, four hundred twelve".