491364205 has 8 divisors (see below), whose sum is σ = 589768704. Its totient is φ = 393003600.

The previous prime is 491364173. The next prime is 491364217. The reversal of 491364205 is 502463194.

It is a happy number.

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

It is not a de Polignac number, because 491364205 - 2⁵ = 491364173 is a prime.

It is a Duffinian number.

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, 23520 + ... + 39190.

It is an arithmetic number, because the mean of its divisors is an integer number (73721088).

Almost surely, 2^491364205 is an apocalyptic number.

It is an amenable number.

491364205 is a deficient number, since it is larger than the sum of its proper divisors (98404499).

491364205 is a wasteful number, since it uses less digits than its factorization.

491364205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21947.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 491364205 is about 22166.7364535242. The cubic root of 491364205 is about 789.1044731363.

The spelling of 491364205 in words is "four hundred ninety-one million, three hundred sixty-four thousand, two hundred five".