66836773 has 8 divisors (see below), whose sum is σ = 69223680. Its totient is φ = 64490160.

The previous prime is 66836701. The next prime is 66836807. The reversal of 66836773 is 37763866.

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 66836773 - 2⁹ = 66836261 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 (66830773) 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 7 ways as a sum of consecutive naturals, for example, 6678 + ... + 13351.

It is an arithmetic number, because the mean of its divisors is an integer number (8652960).

Almost surely, 2^66836773 is an apocalyptic number.

It is an amenable number.

66836773 is a deficient number, since it is larger than the sum of its proper divisors (2386907).

66836773 is a wasteful number, since it uses less digits than its factorization.

66836773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20147.

The product of its digits is 762048, while the sum is 46.

The square root of 66836773 is about 8175.3760158173. The cubic root of 66836773 is about 405.8247138207.

It can be divided in two parts, 6683 and 6773, that added together give a square (13456 = 116²).

The spelling of 66836773 in words is "sixty-six million, eight hundred thirty-six thousand, seven hundred seventy-three".