497884813 has 2 divisors, whose sum is σ = 497884814. Its totient is φ = 497884812.

The previous prime is 497884787. The next prime is 497884817. The reversal of 497884813 is 318488794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326091364 + 171793449 = 18058^2 + 13107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497884813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497884817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248942406 + 248942407.

It is an arithmetic number, because the mean of its divisors is an integer number (248942407).

Almost surely, 2^497884813 is an apocalyptic number.

It is an amenable number.

497884813 is a deficient number, since it is larger than the sum of its proper divisors (1).

497884813 is an equidigital number, since it uses as much as digits as its factorization.

497884813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 52.

The square root of 497884813 is about 22313.3326287222. The cubic root of 497884813 is about 792.5797273397.

The spelling of 497884813 in words is "four hundred ninety-seven million, eight hundred eighty-four thousand, eight hundred thirteen".