408322867 has 2 divisors, whose sum is σ = 408322868. Its totient is φ = 408322866.

The previous prime is 408322853. The next prime is 408322877. The reversal of 408322867 is 768223804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408322867 - 2²³ = 399934259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (408322877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204161433 + 204161434.

It is an arithmetic number, because the mean of its divisors is an integer number (204161434).

Almost surely, 2^408322867 is an apocalyptic number.

408322867 is a deficient number, since it is larger than the sum of its proper divisors (1).

408322867 is an equidigital number, since it uses as much as digits as its factorization.

408322867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 408322867 is about 20207.0004453902. Note that the first 3 decimals coincide. The cubic root of 408322867 is about 741.8815443600.

The spelling of 408322867 in words is "four hundred eight million, three hundred twenty-two thousand, eight hundred sixty-seven".