428857895 has 16 divisors (see below), whose sum is σ = 545408640. Its totient is φ = 322604544.

The previous prime is 428857883. The next prime is 428857901. The reversal of 428857895 is 598758824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428857895 - 2⁴ = 428857879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428857895.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 140354 + ... + 143376.

It is an arithmetic number, because the mean of its divisors is an integer number (34088040).

Almost surely, 2^428857895 is an apocalyptic number.

428857895 is a deficient number, since it is larger than the sum of its proper divisors (116550745).

428857895 is a wasteful number, since it uses less digits than its factorization.

428857895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714.

The product of its digits is 6451200, while the sum is 56.

The square root of 428857895 is about 20708.8844460536. The cubic root of 428857895 is about 754.1153886498.

The spelling of 428857895 in words is "four hundred twenty-eight million, eight hundred fifty-seven thousand, eight hundred ninety-five".