428905893 has 16 divisors (see below), whose sum is σ = 621968256. Its totient is φ = 261326400.

The previous prime is 428905891. The next prime is 428905907. The reversal of 428905893 is 398509824.

It is not a de Polignac number, because 428905893 - 2¹ = 428905891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428905891) 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 15 ways as a sum of consecutive naturals, for example, 50505 + ... + 58382.

It is an arithmetic number, because the mean of its divisors is an integer number (38873016).

Almost surely, 2^428905893 is an apocalyptic number.

It is an amenable number.

428905893 is a deficient number, since it is larger than the sum of its proper divisors (193062363).

428905893 is a wasteful number, since it uses less digits than its factorization.

428905893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109004.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 428905893 is about 20710.0432882213. The cubic root of 428905893 is about 754.1435212633.

The spelling of 428905893 in words is "four hundred twenty-eight million, nine hundred five thousand, eight hundred ninety-three".