491675227 has 2 divisors, whose sum is σ = 491675228. Its totient is φ = 491675226.

The previous prime is 491675183. The next prime is 491675237. The reversal of 491675227 is 722576194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491675227 - 2¹¹ = 491673179 is a prime.

It is not a weakly prime, because it can be changed into another prime (491675237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245837613 + 245837614.

It is an arithmetic number, because the mean of its divisors is an integer number (245837614).

Almost surely, 2^491675227 is an apocalyptic number.

491675227 is a deficient number, since it is larger than the sum of its proper divisors (1).

491675227 is an equidigital number, since it uses as much as digits as its factorization.

491675227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 491675227 is about 22173.7508554597. The cubic root of 491675227 is about 789.2709328849.

The spelling of 491675227 in words is "four hundred ninety-one million, six hundred seventy-five thousand, two hundred twenty-seven".