491562 has 16 divisors (see below), whose sum is σ = 1092480. Its totient is φ = 163836.

The previous prime is 491539. The next prime is 491581. The reversal of 491562 is 265194.

It is a super-3 number, since 3×491562³ = 356333096945148984, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 4498 + ... + 4605.

It is an arithmetic number, because the mean of its divisors is an integer number (68280).

2⁴⁹¹⁵⁶² is an apocalyptic number.

491562 is an abundant number, since it is smaller than the sum of its proper divisors (600918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491562 is a wasteful number, since it uses less digits than its factorization.

491562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114 (or 9108 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 491562 is about 701.1148265441. The cubic root of 491562 is about 78.9210341641.

The spelling of 491562 in words is "four hundred ninety-one thousand, five hundred sixty-two".