491471746 has 16 divisors (see below), whose sum is σ = 776914560. Its totient is φ = 232530480.

The previous prime is 491471741. The next prime is 491471753. The reversal of 491471746 is 647174194.

It is not an unprimeable number, because it can be changed into a prime (491471741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27520 + ... + 41716.

It is an arithmetic number, because the mean of its divisors is an integer number (48557160).

Almost surely, 2^491471746 is an apocalyptic number.

491471746 is a deficient number, since it is larger than the sum of its proper divisors (285442814).

491471746 is a wasteful number, since it uses less digits than its factorization.

491471746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15129.

The product of its digits is 169344, while the sum is 43.

The square root of 491471746 is about 22169.1620500189. The cubic root of 491471746 is about 789.1620372901.

The spelling of 491471746 in words is "four hundred ninety-one million, four hundred seventy-one thousand, seven hundred forty-six".