493661966 has 24 divisors (see below), whose sum is σ = 862184736. Its totient is φ = 211374240.

The previous prime is 493661953. The next prime is 493661999. The reversal of 493661966 is 669166394.

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 11 ways as a sum of consecutive naturals, for example, 167195 + ... + 170121.

It is an arithmetic number, because the mean of its divisors is an integer number (35924364).

Almost surely, 2^493661966 is an apocalyptic number.

493661966 is a deficient number, since it is larger than the sum of its proper divisors (368522770).

493661966 is a wasteful number, since it uses less digits than its factorization.

493661966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4657 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 50.

The square root of 493661966 is about 22218.5050352178. The cubic root of 493661966 is about 790.3325876231.

The spelling of 493661966 in words is "four hundred ninety-three million, six hundred sixty-one thousand, nine hundred sixty-six".