490175729 has 2 divisors, whose sum is σ = 490175730. Its totient is φ = 490175728.

The previous prime is 490175713. The next prime is 490175759. The reversal of 490175729 is 927571094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487217329 + 2958400 = 22073^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 490175729 - 2⁴ = 490175713 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 490175729.

It is not a weakly prime, because it can be changed into another prime (490175759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245087864 + 245087865.

It is an arithmetic number, because the mean of its divisors is an integer number (245087865).

Almost surely, 2^490175729 is an apocalyptic number.

It is an amenable number.

490175729 is a deficient number, since it is larger than the sum of its proper divisors (1).

490175729 is an equidigital number, since it uses as much as digits as its factorization.

490175729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 490175729 is about 22139.9125788699. The cubic root of 490175729 is about 788.4677500053.

The spelling of 490175729 in words is "four hundred ninety million, one hundred seventy-five thousand, seven hundred twenty-nine".