67998204 has 54 divisors (see below), whose sum is σ = 178555104. Its totient is φ = 22657320.

The previous prime is 67998197. The next prime is 67998209. The reversal of 67998204 is 40289976.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (54).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 67998204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67998209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24949 + ... + 27539.

It is an arithmetic number, because the mean of its divisors is an integer number (3306576).

Almost surely, 2^67998204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67998204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89277552).

67998204 is an abundant number, since it is smaller than the sum of its proper divisors (110556900).

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

67998204 is an equidigital number, since it uses as much as digits as its factorization.

67998204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2596 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 67998204 is about 8246.1023520206. The cubic root of 67998204 is about 408.1619167030.

The spelling of 67998204 in words is "sixty-seven million, nine hundred ninety-eight thousand, two hundred four".