66794798 has 16 divisors (see below), whose sum is σ = 114612864. Its totient is φ = 28599480.

The previous prime is 66794789. The next prime is 66794803. The reversal of 66794798 is 89749766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 23093 + ... + 25823.

It is an arithmetic number, because the mean of its divisors is an integer number (7163304).

Almost surely, 2^66794798 is an apocalyptic number.

66794798 is a deficient number, since it is larger than the sum of its proper divisors (47818066).

66794798 is a wasteful number, since it uses less digits than its factorization.

66794798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its digits is 4572288, while the sum is 56.

The square root of 66794798 is about 8172.8084524232. The cubic root of 66794798 is about 405.7397403405.

The spelling of 66794798 in words is "sixty-six million, seven hundred ninety-four thousand, seven hundred ninety-eight".