490784191 has 2 divisors, whose sum is σ = 490784192. Its totient is φ = 490784190.

The previous prime is 490784171. The next prime is 490784201. The reversal of 490784191 is 191487094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490784191 - 2⁵ = 490784159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490784131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245392095 + 245392096.

It is an arithmetic number, because the mean of its divisors is an integer number (245392096).

Almost surely, 2^490784191 is an apocalyptic number.

490784191 is a deficient number, since it is larger than the sum of its proper divisors (1).

490784191 is an equidigital number, since it uses as much as digits as its factorization.

490784191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 490784191 is about 22153.6496090373. The cubic root of 490784191 is about 788.7938604623.

It can be divided in two parts, 4907 and 84191, that added together give a palindrome (89098).

The spelling of 490784191 in words is "four hundred ninety million, seven hundred eighty-four thousand, one hundred ninety-one".