491748005 has 8 divisors (see below), whose sum is σ = 674397312. Its totient is φ = 337198608.

The previous prime is 491747989. The next prime is 491748011. The reversal of 491748005 is 500847194.

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

It is a cyclic number.

It is not a de Polignac number, because 491748005 - 2⁴ = 491747989 is a prime.

It is a super-2 number, since 2×491748005² = 483632200842960050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 491748005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7024937 + ... + 7025006.

It is an arithmetic number, because the mean of its divisors is an integer number (84299664).

Almost surely, 2^491748005 is an apocalyptic number.

It is an amenable number.

491748005 is a deficient number, since it is larger than the sum of its proper divisors (182649307).

491748005 is a wasteful number, since it uses less digits than its factorization.

491748005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049955.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 491748005 is about 22175.3918792882. The cubic root of 491748005 is about 789.3098737161.

The spelling of 491748005 in words is "four hundred ninety-one million, seven hundred forty-eight thousand, five".