428063567 has 4 divisors (see below), whose sum is σ = 432873360. Its totient is φ = 423253776.

The previous prime is 428063561. The next prime is 428063599. The reversal of 428063567 is 765360824.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 428063567 - 2⁴ = 428063551 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 (428063561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404763 + ... + 2404940.

It is an arithmetic number, because the mean of its divisors is an integer number (108218340).

Almost surely, 2^428063567 is an apocalyptic number.

428063567 is a deficient number, since it is larger than the sum of its proper divisors (4809793).

428063567 is an equidigital number, since it uses as much as digits as its factorization.

428063567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809792.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 428063567 is about 20689.6971219977. The cubic root of 428063567 is about 753.6495115788.

The spelling of 428063567 in words is "four hundred twenty-eight million, sixty-three thousand, five hundred sixty-seven".