68198098 has 4 divisors (see below), whose sum is σ = 102297150. Its totient is φ = 34099048.

The previous prime is 68198077. The next prime is 68198113. The reversal of 68198098 is 89089186.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 46881409 + 21316689 = 6847^2 + 4617^2 .

It is an unprimeable number.

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, 17049523 + ... + 17049526.

Almost surely, 2^68198098 is an apocalyptic number.

68198098 is a deficient number, since it is larger than the sum of its proper divisors (34099052).

68198098 is a wasteful number, since it uses less digits than its factorization.

68198098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34099051.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 68198098 is about 8258.2139715558. The cubic root of 68198098 is about 408.5614826456.

The spelling of 68198098 in words is "sixty-eight million, one hundred ninety-eight thousand, ninety-eight".