491546 has 8 divisors (see below), whose sum is σ = 804384. Its totient is φ = 223420.

The previous prime is 491539. The next prime is 491581. The reversal of 491546 is 645194.

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

It is an Ulam number.

It is an unprimeable number.

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, 11150 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (100548).

2⁴⁹¹⁵⁴⁶ is an apocalyptic number.

491546 is a deficient number, since it is larger than the sum of its proper divisors (312838).

491546 is a wasteful number, since it uses less digits than its factorization.

491546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22356.

The product of its digits is 4320, while the sum is 29.

The square root of 491546 is about 701.1034160522. The cubic root of 491546 is about 78.9201778799.

The spelling of 491546 in words is "four hundred ninety-one thousand, five hundred forty-six".