67998006 has 12 divisors (see below), whose sum is σ = 147329052. Its totient is φ = 22665996.

The previous prime is 67998001. The next prime is 67998013. The reversal of 67998006 is 60089976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67998001) 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 5 ways as a sum of consecutive naturals, for example, 1888816 + ... + 1888851.

It is an arithmetic number, because the mean of its divisors is an integer number (12277421).

Almost surely, 2^67998006 is an apocalyptic number.

67998006 is an abundant number, since it is smaller than the sum of its proper divisors (79331046).

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

67998006 is a wasteful number, since it uses less digits than its factorization.

67998006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777675 (or 3777672 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 67998006 is about 8246.0903463399. The cubic root of 67998006 is about 408.1615205350.

The spelling of 67998006 in words is "sixty-seven million, nine hundred ninety-eight thousand, six".