66727338 has 8 divisors (see below), whose sum is σ = 133454688. Its totient is φ = 22242444.

The previous prime is 66727337. The next prime is 66727343. The reversal of 66727338 is 83372766.

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

66727338 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66727338.

It is not an unprimeable number, because it can be changed into a prime (66727337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5560606 + ... + 5560617.

It is an arithmetic number, because the mean of its divisors is an integer number (16681836).

Almost surely, 2^66727338 is an apocalyptic number.

66727338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66727338 is a wasteful number, since it uses less digits than its factorization.

66727338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121228.

The product of its digits is 254016, while the sum is 42.

The square root of 66727338 is about 8168.6803095727. The cubic root of 66727338 is about 405.6031008442.

The spelling of 66727338 in words is "sixty-six million, seven hundred twenty-seven thousand, three hundred thirty-eight".