453689 has 4 divisors (see below), whose sum is σ = 455040. Its totient is φ = 452340.

The previous prime is 453683. The next prime is 453703. The reversal of 453689 is 986354.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 986354 = 2 ⋅493177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453689 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 5⁷ + 6⁷ + 3⁹ + 8³ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (453683) 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, 272 + ... + 990.

It is an arithmetic number, because the mean of its divisors is an integer number (113760).

2⁴⁵³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

453689 is a deficient number, since it is larger than the sum of its proper divisors (1351).

453689 is an equidigital number, since it uses as much as digits as its factorization.

453689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its digits is 25920, while the sum is 35.

The square root of 453689 is about 673.5643992968. The cubic root of 453689 is about 76.8397747711.

The spelling of 453689 in words is "four hundred fifty-three thousand, six hundred eighty-nine".