497240587 has 2 divisors, whose sum is σ = 497240588. Its totient is φ = 497240586.

The previous prime is 497240561. The next prime is 497240603. The reversal of 497240587 is 785042794.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497240587 is a prime.

It is not a weakly prime, because it can be changed into another prime (497240537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248620293 + 248620294.

It is an arithmetic number, because the mean of its divisors is an integer number (248620294).

Almost surely, 2^497240587 is an apocalyptic number.

497240587 is a deficient number, since it is larger than the sum of its proper divisors (1).

497240587 is an equidigital number, since it uses as much as digits as its factorization.

497240587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 497240587 is about 22298.8920576786. The cubic root of 497240587 is about 792.2377333424.

The spelling of 497240587 in words is "four hundred ninety-seven million, two hundred forty thousand, five hundred eighty-seven".