491344937 has 2 divisors, whose sum is σ = 491344938. Its totient is φ = 491344936.

The previous prime is 491344907. The next prime is 491344967. The reversal of 491344937 is 739443194.

It is a balanced prime because it is at equal distance from previous prime (491344907) and next prime (491344967).

It can be written as a sum of positive squares in only one way, i.e., 482724841 + 8620096 = 21971^2 + 2936^2 .

It is a cyclic number.

It is not a de Polignac number, because 491344937 - 2⁸ = 491344681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (491344907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245672468 + 245672469.

It is an arithmetic number, because the mean of its divisors is an integer number (245672469).

Almost surely, 2^491344937 is an apocalyptic number.

It is an amenable number.

491344937 is a deficient number, since it is larger than the sum of its proper divisors (1).

491344937 is an equidigital number, since it uses as much as digits as its factorization.

491344937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 491344937 is about 22166.3018340904. The cubic root of 491344937 is about 789.0941585444.

The spelling of 491344937 in words is "four hundred ninety-one million, three hundred forty-four thousand, nine hundred thirty-seven".