491927441 has 2 divisors, whose sum is σ = 491927442. Its totient is φ = 491927440.

The previous prime is 491927417. The next prime is 491927483. The reversal of 491927441 is 144729194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403849216 + 88078225 = 20096^2 + 9385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491927441 is a prime.

It is not a weakly prime, because it can be changed into another prime (491927341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245963720 + 245963721.

It is an arithmetic number, because the mean of its divisors is an integer number (245963721).

Almost surely, 2^491927441 is an apocalyptic number.

It is an amenable number.

491927441 is a deficient number, since it is larger than the sum of its proper divisors (1).

491927441 is an equidigital number, since it uses as much as digits as its factorization.

491927441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 491927441 is about 22179.4373463350. The cubic root of 491927441 is about 789.4058669090.

The spelling of 491927441 in words is "four hundred ninety-one million, nine hundred twenty-seven thousand, four hundred forty-one".