491424313 has 2 divisors, whose sum is σ = 491424314. Its totient is φ = 491424312.

The previous prime is 491424301. The next prime is 491424317. The reversal of 491424313 is 313424194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471237264 + 20187049 = 21708^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 491424313 - 2⁵ = 491424281 is a prime.

It is not a weakly prime, because it can be changed into another prime (491424317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245712156 + 245712157.

It is an arithmetic number, because the mean of its divisors is an integer number (245712157).

Almost surely, 2^491424313 is an apocalyptic number.

It is an amenable number.

491424313 is a deficient number, since it is larger than the sum of its proper divisors (1).

491424313 is an equidigital number, since it uses as much as digits as its factorization.

491424313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 491424313 is about 22168.0922273433. The cubic root of 491424313 is about 789.1366485622.

The spelling of 491424313 in words is "four hundred ninety-one million, four hundred twenty-four thousand, three hundred thirteen".