491046719 has 2 divisors, whose sum is σ = 491046720. Its totient is φ = 491046718.

The previous prime is 491046701. The next prime is 491046737. The reversal of 491046719 is 917640194.

It is a balanced prime because it is at equal distance from previous prime (491046701) and next prime (491046737).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491046719 is a prime.

It is a super-2 number, since 2×491046719² = 482253760481329922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491046769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245523359 + 245523360.

It is an arithmetic number, because the mean of its divisors is an integer number (245523360).

Almost surely, 2^491046719 is an apocalyptic number.

491046719 is a deficient number, since it is larger than the sum of its proper divisors (1).

491046719 is an equidigital number, since it uses as much as digits as its factorization.

491046719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 491046719 is about 22159.5739805620. The cubic root of 491046719 is about 788.9344813746.

The spelling of 491046719 in words is "four hundred ninety-one million, forty-six thousand, seven hundred nineteen".