428845653 has 12 divisors (see below), whose sum is σ = 622868428. Its totient is φ = 284316480.

The previous prime is 428845639. The next prime is 428845663. The reversal of 428845653 is 356548824.

428845653 is a `hidden beast` number, since 4 + 2 + 8 + 84 + 565 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64112049 + 364733604 = 8007^2 + 19098^2 .

It is not a de Polignac number, because 428845653 - 2⁶ = 428845589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428845599 and 428845608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428845663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130000 + ... + 133257.

Almost surely, 2^428845653 is an apocalyptic number.

It is an amenable number.

428845653 is a deficient number, since it is larger than the sum of its proper divisors (194022775).

428845653 is a wasteful number, since it uses less digits than its factorization.

428845653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263444 (or 263441 counting only the distinct ones).

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

The square root of 428845653 is about 20708.5888703214. The cubic root of 428845653 is about 754.1082130263.

The spelling of 428845653 in words is "four hundred twenty-eight million, eight hundred forty-five thousand, six hundred fifty-three".