491471662 has 8 divisors (see below), whose sum is σ = 804226392. Its totient is φ = 223396200.

The previous prime is 491471647. The next prime is 491471741. The reversal of 491471662 is 266174194.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11169789 + ... + 11169832.

It is an arithmetic number, because the mean of its divisors is an integer number (100528299).

Almost surely, 2^491471662 is an apocalyptic number.

491471662 is a deficient number, since it is larger than the sum of its proper divisors (312754730).

491471662 is a wasteful number, since it uses less digits than its factorization.

491471662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22339634.

The product of its digits is 72576, while the sum is 40.

The square root of 491471662 is about 22169.1601554953. The cubic root of 491471662 is about 789.1619923302.

The spelling of 491471662 in words is "four hundred ninety-one million, four hundred seventy-one thousand, six hundred sixty-two".