491606 has 16 divisors (see below), whose sum is σ = 822960. Its totient is φ = 218880.

The previous prime is 491593. The next prime is 491611. The reversal of 491606 is 606194.

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, 266 + ... + 1026.

It is an arithmetic number, because the mean of its divisors is an integer number (51435).

2⁴⁹¹⁶⁰⁶ is an apocalyptic number.

491606 is a deficient number, since it is larger than the sum of its proper divisors (331354).

491606 is a wasteful number, since it uses less digits than its factorization.

491606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 491606 is about 701.1462044396. The cubic root of 491606 is about 78.9233888497.

The spelling of 491606 in words is "four hundred ninety-one thousand, six hundred six".