428855983 has 8 divisors (see below), whose sum is σ = 431456256. Its totient is φ = 426262200.

The previous prime is 428855981. The next prime is 428856067. The reversal of 428855983 is 389558824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428855983 - 2¹ = 428855981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428855983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428855981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202098 + ... + 204208.

It is an arithmetic number, because the mean of its divisors is an integer number (53932032).

Almost surely, 2^428855983 is an apocalyptic number.

428855983 is a deficient number, since it is larger than the sum of its proper divisors (2600273).

428855983 is a wasteful number, since it uses less digits than its factorization.

428855983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245.

The product of its digits is 2764800, while the sum is 52.

The square root of 428855983 is about 20708.8382822407. The cubic root of 428855983 is about 754.1142679439.

The spelling of 428855983 in words is "four hundred twenty-eight million, eight hundred fifty-five thousand, nine hundred eighty-three".