453909 has 4 divisors (see below), whose sum is σ = 605216. Its totient is φ = 302604.

The previous prime is 453907. The next prime is 453913. The reversal of 453909 is 909354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 453909 - 2¹ = 453907 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453907) 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 in 3 ways as a sum of consecutive naturals, for example, 75649 + ... + 75654.

It is an arithmetic number, because the mean of its divisors is an integer number (151304).

2⁴⁵³⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

453909 is a deficient number, since it is larger than the sum of its proper divisors (151307).

453909 is a wasteful number, since it uses less digits than its factorization.

453909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151306.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 453909 is about 673.7276897976. The cubic root of 453909 is about 76.8521929832.

The spelling of 453909 in words is "four hundred fifty-three thousand, nine hundred nine".