428453 has 4 divisors (see below), whose sum is σ = 431340. Its totient is φ = 425568.

The previous prime is 428429. The next prime is 428471. The reversal of 428453 is 354824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 293764 + 134689 = 542^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 428453 - 2¹⁰ = 427429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 1521.

It is an arithmetic number, because the mean of its divisors is an integer number (107835).

2⁴²⁸⁴⁵³ is an apocalyptic number.

It is an amenable number.

428453 is a deficient number, since it is larger than the sum of its proper divisors (2887).

428453 is a wasteful number, since it uses less digits than its factorization.

428453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886.

The product of its digits is 3840, while the sum is 26.

The square root of 428453 is about 654.5632131429. The cubic root of 428453 is about 75.3877987795.

The spelling of 428453 in words is "four hundred twenty-eight thousand, four hundred fifty-three".