68223549 has 8 divisors (see below), whose sum is σ = 93183552. Its totient is φ = 44372960.

The previous prime is 68223539. The next prime is 68223577. The reversal of 68223549 is 94532286.

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 68223549 - 2⁵ = 68223517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68223539) 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, 277209 + ... + 277454.

It is an arithmetic number, because the mean of its divisors is an integer number (11647944).

Almost surely, 2^68223549 is an apocalyptic number.

It is an amenable number.

68223549 is a deficient number, since it is larger than the sum of its proper divisors (24960003).

68223549 is a wasteful number, since it uses less digits than its factorization.

68223549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554707.

The product of its digits is 103680, while the sum is 39.

The square root of 68223549 is about 8259.7547784423. The cubic root of 68223549 is about 408.6123003143.

The spelling of 68223549 in words is "sixty-eight million, two hundred twenty-three thousand, five hundred forty-nine".