408679459 has 2 divisors, whose sum is σ = 408679460. Its totient is φ = 408679458.

The previous prime is 408679423. The next prime is 408679471. The reversal of 408679459 is 954976804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408679459 - 2⁹ = 408678947 is a prime.

It is not a weakly prime, because it can be changed into another prime (408679409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204339729 + 204339730.

It is an arithmetic number, because the mean of its divisors is an integer number (204339730).

Almost surely, 2^408679459 is an apocalyptic number.

408679459 is a deficient number, since it is larger than the sum of its proper divisors (1).

408679459 is an equidigital number, since it uses as much as digits as its factorization.

408679459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 408679459 is about 20215.8219966441. The cubic root of 408679459 is about 742.0974454449.

The spelling of 408679459 in words is "four hundred eight million, six hundred seventy-nine thousand, four hundred fifty-nine".