67198998 has 8 divisors (see below), whose sum is σ = 134398008. Its totient is φ = 22399664.

The previous prime is 67198997. The next prime is 67199009. The reversal of 67198998 is 89989176.

It is a sphenic number, since it is the product of 3 distinct primes.

67198998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67198997) 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 in 3 ways as a sum of consecutive naturals, for example, 5599911 + ... + 5599922.

It is an arithmetic number, because the mean of its divisors is an integer number (16799751).

Almost surely, 2^67198998 is an apocalyptic number.

67198998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67198998 is a wasteful number, since it uses less digits than its factorization.

67198998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11199838.

The product of its digits is 1959552, while the sum is 57.

The square root of 67198998 is about 8197.4994967978. The cubic root of 67198998 is about 406.5565220231.

The spelling of 67198998 in words is "sixty-seven million, one hundred ninety-eight thousand, nine hundred ninety-eight".