496828721 has 2 divisors, whose sum is σ = 496828722. Its totient is φ = 496828720.

The previous prime is 496828597. The next prime is 496828733. The reversal of 496828721 is 127828694.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462723121 + 34105600 = 21511^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 496828721 - 2¹⁰ = 496827697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (496828741) 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, 248414360 + 248414361.

It is an arithmetic number, because the mean of its divisors is an integer number (248414361).

Almost surely, 2^496828721 is an apocalyptic number.

It is an amenable number.

496828721 is a deficient number, since it is larger than the sum of its proper divisors (1).

496828721 is an equidigital number, since it uses as much as digits as its factorization.

496828721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 496828721 is about 22289.6550220052. The cubic root of 496828721 is about 792.0189352214.

The spelling of 496828721 in words is "four hundred ninety-six million, eight hundred twenty-eight thousand, seven hundred twenty-one".