497800811 has 2 divisors, whose sum is σ = 497800812. Its totient is φ = 497800810.

The previous prime is 497800789. The next prime is 497800843. The reversal of 497800811 is 118008794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497800811 - 2²² = 493606507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_26246189 and since 497800811 and 26246189 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (497808811) 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, 248900405 + 248900406.

It is an arithmetic number, because the mean of its divisors is an integer number (248900406).

Almost surely, 2^497800811 is an apocalyptic number.

497800811 is a deficient number, since it is larger than the sum of its proper divisors (1).

497800811 is an equidigital number, since it uses as much as digits as its factorization.

497800811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 497800811 is about 22311.4502218032. The cubic root of 497800811 is about 792.5351507461.

The spelling of 497800811 in words is "four hundred ninety-seven million, eight hundred thousand, eight hundred eleven".