491706604 has 48 divisors (see below), whose sum is σ = 935315136. Its totient is φ = 225561600.

The previous prime is 491706569. The next prime is 491706619. The reversal of 491706604 is 406607194.

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 15 ways as a sum of consecutive naturals, for example, 229024 + ... + 231160.

It is an arithmetic number, because the mean of its divisors is an integer number (19485732).

Almost surely, 2^491706604 is an apocalyptic number.

It is an amenable number.

491706604 is a deficient number, since it is larger than the sum of its proper divisors (443608532).

491706604 is a wasteful number, since it uses less digits than its factorization.

491706604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 491706604 is about 22174.4583699354. The cubic root of 491706604 is about 789.2877220348.

The spelling of 491706604 in words is "four hundred ninety-one million, seven hundred six thousand, six hundred four".