497766449 has 2 divisors, whose sum is σ = 497766450. Its totient is φ = 497766448.

The previous prime is 497766431. The next prime is 497766457. The reversal of 497766449 is 944667794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 486423025 + 11343424 = 22055^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 497766449 - 2⁸ = 497766193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 497766394 and 497766403.

It is not a weakly prime, because it can be changed into another prime (497766419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248883224 + 248883225.

It is an arithmetic number, because the mean of its divisors is an integer number (248883225).

Almost surely, 2^497766449 is an apocalyptic number.

It is an amenable number.

497766449 is a deficient number, since it is larger than the sum of its proper divisors (1).

497766449 is an equidigital number, since it uses as much as digits as its factorization.

497766449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 56.

The square root of 497766449 is about 22310.6801554771. The cubic root of 497766449 is about 792.5169147242.

The spelling of 497766449 in words is "four hundred ninety-seven million, seven hundred sixty-six thousand, four hundred forty-nine".