459856009 has 2 divisors, whose sum is σ = 459856010. Its totient is φ = 459856008.

The previous prime is 459855989. The next prime is 459856013. The reversal of 459856009 is 900658954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455694409 + 4161600 = 21347^2 + 2040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-459856009 is a prime.

It is a super-2 number, since 2×459856009² = 422935098026816162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 459856009.

It is not a weakly prime, because it can be changed into another prime (459856079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229928004 + 229928005.

It is an arithmetic number, because the mean of its divisors is an integer number (229928005).

Almost surely, 2^459856009 is an apocalyptic number.

It is an amenable number.

459856009 is a deficient number, since it is larger than the sum of its proper divisors (1).

459856009 is an equidigital number, since it uses as much as digits as its factorization.

459856009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 459856009 is about 21444.2535192998. The cubic root of 459856009 is about 771.8637088592.

The spelling of 459856009 in words is "four hundred fifty-nine million, eight hundred fifty-six thousand, nine".