491494603 has 8 divisors (see below), whose sum is σ = 526132800. Its totient is φ = 457733448.

The previous prime is 491494573. The next prime is 491494607. The reversal of 491494603 is 306494194.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491494603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491494607) 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, 218101 + ... + 220342.

It is an arithmetic number, because the mean of its divisors is an integer number (65766600).

Almost surely, 2^491494603 is an apocalyptic number.

491494603 is a deficient number, since it is larger than the sum of its proper divisors (34638197).

491494603 is a wasteful number, since it uses less digits than its factorization.

491494603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438521.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 491494603 is about 22169.6775574206. The cubic root of 491494603 is about 789.1742710195.

The spelling of 491494603 in words is "four hundred ninety-one million, four hundred ninety-four thousand, six hundred three".