68898189 has 8 divisors (see below), whose sum is σ = 92331360. Its totient is φ = 45698576.

The previous prime is 68898173. The next prime is 68898209. The reversal of 68898189 is 98189886.

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

It is a cyclic number.

It is not a de Polignac number, because 68898189 - 2⁴ = 68898173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68898139) 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 7 ways as a sum of consecutive naturals, for example, 57699 + ... + 58880.

It is an arithmetic number, because the mean of its divisors is an integer number (11541420).

Almost surely, 2^68898189 is an apocalyptic number.

It is an amenable number.

68898189 is a deficient number, since it is larger than the sum of its proper divisors (23433171).

68898189 is a wasteful number, since it uses less digits than its factorization.

68898189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116779.

The product of its digits is 1990656, while the sum is 57.

The square root of 68898189 is about 8300.4932985938. The cubic root of 68898189 is about 409.9547620125.

The spelling of 68898189 in words is "sixty-eight million, eight hundred ninety-eight thousand, one hundred eighty-nine".