491410897 has 16 divisors (see below), whose sum is σ = 514236672. Its totient is φ = 469244160.

The previous prime is 491410883. The next prime is 491410921. The reversal of 491410897 is 798014194.

It is a cyclic number.

It is not a de Polignac number, because 491410897 - 2⁷ = 491410769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491410807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355147 + ... + 356527.

It is an arithmetic number, because the mean of its divisors is an integer number (32139792).

Almost surely, 2^491410897 is an apocalyptic number.

491410897 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

491410897 is a deficient number, since it is larger than the sum of its proper divisors (22825775).

491410897 is a wasteful number, since it uses less digits than its factorization.

491410897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 491410897 is about 22167.7896281970. The cubic root of 491410897 is about 789.1294672912.

The spelling of 491410897 in words is "four hundred ninety-one million, four hundred ten thousand, eight hundred ninety-seven".