453789409 has 2 divisors, whose sum is σ = 453789410. Its totient is φ = 453789408.

The previous prime is 453789397. The next prime is 453789421. The reversal of 453789409 is 904987354.

It is a balanced prime because it is at equal distance from previous prime (453789397) and next prime (453789421).

It can be written as a sum of positive squares in only one way, i.e., 274631184 + 179158225 = 16572^2 + 13385^2 .

It is a cyclic number.

It is not a de Polignac number, because 453789409 - 2²¹ = 451692257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (453789209) 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, 226894704 + 226894705.

It is an arithmetic number, because the mean of its divisors is an integer number (226894705).

Almost surely, 2^453789409 is an apocalyptic number.

It is an amenable number.

453789409 is a deficient number, since it is larger than the sum of its proper divisors (1).

453789409 is an equidigital number, since it uses as much as digits as its factorization.

453789409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 453789409 is about 21302.3334167879. Note that the first 3 decimals coincide. The cubic root of 453789409 is about 768.4544299740.

The spelling of 453789409 in words is "four hundred fifty-three million, seven hundred eighty-nine thousand, four hundred nine".