491507411 has 2 divisors, whose sum is σ = 491507412. Its totient is φ = 491507410.

The previous prime is 491507407. The next prime is 491507441. The reversal of 491507411 is 114705194.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491507411 - 2² = 491507407 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (491507441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245753705 + 245753706.

It is an arithmetic number, because the mean of its divisors is an integer number (245753706).

Almost surely, 2^491507411 is an apocalyptic number.

491507411 is a deficient number, since it is larger than the sum of its proper divisors (1).

491507411 is an equidigital number, since it uses as much as digits as its factorization.

491507411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 491507411 is about 22169.9664185582. The cubic root of 491507411 is about 789.1811260668.

The spelling of 491507411 in words is "four hundred ninety-one million, five hundred seven thousand, four hundred eleven".