491694 has 32 divisors (see below), whose sum is σ = 1175040. Its totient is φ = 134112.

The previous prime is 491677. The next prime is 491707. The reversal of 491694 is 496194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (36720).

2⁴⁹¹⁶⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587520).

491694 is an abundant number, since it is smaller than the sum of its proper divisors (683346).

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

491694 is a wasteful number, since it uses less digits than its factorization.

491694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its digits is 7776, while the sum is 33.

The square root of 491694 is about 701.2089560181. The cubic root of 491694 is about 78.9280977995.

The spelling of 491694 in words is "four hundred ninety-one thousand, six hundred ninety-four".