66887322 has 8 divisors (see below), whose sum is σ = 133774656. Its totient is φ = 22295772.

The previous prime is 66887309. The next prime is 66887329. The reversal of 66887322 is 22378866.

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

66887322 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66887329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5573938 + ... + 5573949.

It is an arithmetic number, because the mean of its divisors is an integer number (16721832).

Almost surely, 2^66887322 is an apocalyptic number.

66887322 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.

66887322 is a wasteful number, since it uses less digits than its factorization.

66887322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147892.

The product of its digits is 193536, while the sum is 42.

The square root of 66887322 is about 8178.4669712606. The cubic root of 66887322 is about 405.9269971551.

It can be divided in two parts, 668 and 87322, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 66887322 in words is "sixty-six million, eight hundred eighty-seven thousand, three hundred twenty-two".