67986198 has 24 divisors (see below), whose sum is σ = 168347088. Its totient is φ = 19424592.

The previous prime is 67986197. The next prime is 67986209. The reversal of 67986198 is 89168976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67986197) 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 11 ways as a sum of consecutive naturals, for example, 269661 + ... + 269912.

It is an arithmetic number, because the mean of its divisors is an integer number (7014462).

Almost surely, 2^67986198 is an apocalyptic number.

67986198 is an abundant number, since it is smaller than the sum of its proper divisors (100360890).

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

67986198 is a wasteful number, since it uses less digits than its factorization.

67986198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539588 (or 539585 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 67986198 is about 8245.3743395919. The cubic root of 67986198 is about 408.1378931253.

It can be divided in two parts, 6798 and 6198, that added together give a square (12996 = 114²).

The spelling of 67986198 in words is "sixty-seven million, nine hundred eighty-six thousand, one hundred ninety-eight".