68840189 has 8 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 61055200.

The previous prime is 68840183. The next prime is 68840201. The reversal of 68840189 is 98104886.

It is a happy number.

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 68840189 - 2¹⁶ = 68774653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68840183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75869 + ... + 76770.

It is an arithmetic number, because the mean of its divisors is an integer number (9616320).

Almost surely, 2^68840189 is an apocalyptic number.

It is an amenable number.

68840189 is a deficient number, since it is larger than the sum of its proper divisors (8090371).

68840189 is a wasteful number, since it uses less digits than its factorization.

68840189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152691.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 68840189 is about 8296.9987947450. The cubic root of 68840189 is about 409.8396934272.

The spelling of 68840189 in words is "sixty-eight million, eight hundred forty thousand, one hundred eighty-nine".