428648553 has 12 divisors (see below), whose sum is σ = 633558640. Its totient is φ = 279119736.

The previous prime is 428648551. The next prime is 428648567. The reversal of 428648553 is 355846824.

428648553 is a `hidden beast` number, since 42 + 86 + 485 + 53 = 666.

It is not a de Polignac number, because 428648553 - 2¹ = 428648551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428648499 and 428648508.

It is not an unprimeable number, because it can be changed into a prime (428648551) 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 in 11 ways as a sum of consecutive naturals, for example, 553423 + ... + 554196.

Almost surely, 2^428648553 is an apocalyptic number.

428648553 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

428648553 is a deficient number, since it is larger than the sum of its proper divisors (204910087).

428648553 is a wasteful number, since it uses less digits than its factorization.

428648553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107668 (or 1107665 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 428648553 is about 20703.8294283932. The cubic root of 428648553 is about 753.9926644564.

It can be divided in two parts, 428648 and 553, that added together give a triangular number (429201 = T₉₂₆).

The spelling of 428648553 in words is "four hundred twenty-eight million, six hundred forty-eight thousand, five hundred fifty-three".