457844609 has 2 divisors, whose sum is σ = 457844610. Its totient is φ = 457844608.

The previous prime is 457844593. The next prime is 457844641. The reversal of 457844609 is 906448754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436684609 + 21160000 = 20897^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 457844609 - 2⁴ = 457844593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (457844689) 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, 228922304 + 228922305.

It is an arithmetic number, because the mean of its divisors is an integer number (228922305).

Almost surely, 2^457844609 is an apocalyptic number.

It is an amenable number.

457844609 is a deficient number, since it is larger than the sum of its proper divisors (1).

457844609 is an equidigital number, since it uses as much as digits as its factorization.

457844609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 457844609 is about 21397.3037787475. The cubic root of 457844609 is about 770.7366924870.

The spelling of 457844609 in words is "four hundred fifty-seven million, eight hundred forty-four thousand, six hundred nine".