408468497 has 2 divisors, whose sum is σ = 408468498. Its totient is φ = 408468496.

The previous prime is 408468427. The next prime is 408468521. The reversal of 408468497 is 794864804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219158416 + 189310081 = 14804^2 + 13759^2 .

It is a cyclic number.

It is not a de Polignac number, because 408468497 - 2⁸ = 408468241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (408468427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204234248 + 204234249.

It is an arithmetic number, because the mean of its divisors is an integer number (204234249).

Almost surely, 2^408468497 is an apocalyptic number.

It is an amenable number.

408468497 is a deficient number, since it is larger than the sum of its proper divisors (1).

408468497 is an equidigital number, since it uses as much as digits as its factorization.

408468497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 408468497 is about 20210.6035783200. The cubic root of 408468497 is about 741.9697322265.

The spelling of 408468497 in words is "four hundred eight million, four hundred sixty-eight thousand, four hundred ninety-seven".