406859459 has 2 divisors, whose sum is σ = 406859460. Its totient is φ = 406859458.

The previous prime is 406859423. The next prime is 406859471. The reversal of 406859459 is 954958604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406859459 - 2²⁴ = 390082243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406850459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203429729 + 203429730.

It is an arithmetic number, because the mean of its divisors is an integer number (203429730).

Almost surely, 2^406859459 is an apocalyptic number.

406859459 is a deficient number, since it is larger than the sum of its proper divisors (1).

406859459 is an equidigital number, since it uses as much as digits as its factorization.

406859459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 406859459 is about 20170.7575217194. The cubic root of 406859459 is about 740.9941951036.

The spelling of 406859459 in words is "four hundred six million, eight hundred fifty-nine thousand, four hundred fifty-nine".