428480523 has 10 divisors (see below), whose sum is σ = 640075964. Its totient is φ = 285653628.

The previous prime is 428480513. The next prime is 428480557. The reversal of 428480523 is 325084824.

It is not a de Polignac number, because 428480523 - 2⁵ = 428480491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428480513) 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 9 ways as a sum of consecutive naturals, for example, 2644861 + ... + 2645022.

Almost surely, 2^428480523 is an apocalyptic number.

428480523 is a deficient number, since it is larger than the sum of its proper divisors (211595441).

428480523 is an equidigital number, since it uses as much as digits as its factorization.

428480523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289895 (or 5289886 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 428480523 is about 20699.7710856908. The cubic root of 428480523 is about 753.8941300085.

The spelling of 428480523 in words is "four hundred twenty-eight million, four hundred eighty thousand, five hundred twenty-three".