453616789 has 2 divisors, whose sum is σ = 453616790. Its totient is φ = 453616788.

The previous prime is 453616777. The next prime is 453616837. The reversal of 453616789 is 987616354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441714289 + 11902500 = 21017^2 + 3450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453616789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453613789) 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, 226808394 + 226808395.

It is an arithmetic number, because the mean of its divisors is an integer number (226808395).

Almost surely, 2^453616789 is an apocalyptic number.

It is an amenable number.

453616789 is a deficient number, since it is larger than the sum of its proper divisors (1).

453616789 is an equidigital number, since it uses as much as digits as its factorization.

453616789 is an odious number, because the sum of its binary digits is odd.

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

The square root of 453616789 is about 21298.2813625889. The cubic root of 453616789 is about 768.3569784362.

The spelling of 453616789 in words is "four hundred fifty-three million, six hundred sixteen thousand, seven hundred eighty-nine".