68728183 has 8 divisors (see below), whose sum is σ = 69785600. Its totient is φ = 67675608.

The previous prime is 68728181. The next prime is 68728199. The reversal of 68728183 is 38182786.

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 68728183 - 2¹ = 68728181 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 (68728181) 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, 35638 + ... + 37516.

It is an arithmetic number, because the mean of its divisors is an integer number (8723200).

Almost surely, 2^68728183 is an apocalyptic number.

68728183 is a deficient number, since it is larger than the sum of its proper divisors (1057417).

68728183 is a wasteful number, since it uses less digits than its factorization.

68728183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421.

The product of its digits is 129024, while the sum is 43.

The square root of 68728183 is about 8290.2462568973. The cubic root of 68728183 is about 409.6172970620.

The spelling of 68728183 in words is "sixty-eight million, seven hundred twenty-eight thousand, one hundred eighty-three".