67868198 has 4 divisors (see below), whose sum is σ = 101802300. Its totient is φ = 33934098.

The previous prime is 67868197. The next prime is 67868201. The reversal of 67868198 is 89186876.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67868191) 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, 16967048 + ... + 16967051.

It is an arithmetic number, because the mean of its divisors is an integer number (25450575).

Almost surely, 2^67868198 is an apocalyptic number.

67868198 is a deficient number, since it is larger than the sum of its proper divisors (33934102).

67868198 is a wasteful number, since it uses less digits than its factorization.

67868198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33934101.

The product of its digits is 1161216, while the sum is 53.

The square root of 67868198 is about 8238.2157048720. The cubic root of 67868198 is about 407.9016286933.

The spelling of 67868198 in words is "sixty-seven million, eight hundred sixty-eight thousand, one hundred ninety-eight".