497690591 has 2 divisors, whose sum is σ = 497690592. Its totient is φ = 497690590.

The previous prime is 497690587. The next prime is 497690597. The reversal of 497690591 is 195096794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497690591 - 2² = 497690587 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497690597) 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, 248845295 + 248845296.

It is an arithmetic number, because the mean of its divisors is an integer number (248845296).

Almost surely, 2^497690591 is an apocalyptic number.

497690591 is a deficient number, since it is larger than the sum of its proper divisors (1).

497690591 is an equidigital number, since it uses as much as digits as its factorization.

497690591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 497690591 is about 22308.9800528845. The cubic root of 497690591 is about 792.4766536724.

The spelling of 497690591 in words is "four hundred ninety-seven million, six hundred ninety thousand, five hundred ninety-one".