491672 has 16 divisors (see below), whose sum is σ = 945000. Its totient is φ = 239680.

The previous prime is 491669. The next prime is 491677. The reversal of 491672 is 276194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422 + ... + 1077.

2⁴⁹¹⁶⁷² is an apocalyptic number.

It is an amenable number.

491672 is a deficient number, since it is larger than the sum of its proper divisors (453328).

491672 is a wasteful number, since it uses less digits than its factorization.

491672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 1542 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 491672 is about 701.1932686499. The cubic root of 491672 is about 78.9269206147.

The spelling of 491672 in words is "four hundred ninety-one thousand, six hundred seventy-two".