491708 has 24 divisors (see below), whose sum is σ = 1042272. Its totient is φ = 198144.

The previous prime is 491707. The next prime is 491719. The reversal of 491708 is 807194.

491708 = 162² + 163² + ... + 178².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41 + ... + 992.

It is an arithmetic number, because the mean of its divisors is an integer number (43428).

2⁴⁹¹⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

491708 is an abundant number, since it is smaller than the sum of its proper divisors (550564).

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

491708 is a wasteful number, since it uses less digits than its factorization.

491708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 491708 is about 701.2189387060. The cubic root of 491708 is about 78.9288468987.

The spelling of 491708 in words is "four hundred ninety-one thousand, seven hundred eight".