497087971 has 2 divisors, whose sum is σ = 497087972. Its totient is φ = 497087970.

The previous prime is 497087947. The next prime is 497087999. The reversal of 497087971 is 179780794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497087971 - 2¹⁵ = 497055203 is a prime.

It is not a weakly prime, because it can be changed into another prime (497087911) 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, 248543985 + 248543986.

It is an arithmetic number, because the mean of its divisors is an integer number (248543986).

Almost surely, 2^497087971 is an apocalyptic number.

497087971 is a deficient number, since it is larger than the sum of its proper divisors (1).

497087971 is an equidigital number, since it uses as much as digits as its factorization.

497087971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 497087971 is about 22295.4697416314. The cubic root of 497087971 is about 792.1566722966.

The spelling of 497087971 in words is "four hundred ninety-seven million, eighty-seven thousand, nine hundred seventy-one".