428586057 has 6 divisors (see below), whose sum is σ = 619068762. Its totient is φ = 285724032.

The previous prime is 428586049. The next prime is 428586083. The reversal of 428586057 is 750685824.

It can be written as a sum of positive squares in only one way, i.e., 418243401 + 10342656 = 20451^2 + 3216^2 .

It is not a de Polignac number, because 428586057 - 2³ = 428586049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428586007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23810328 + ... + 23810345.

It is an arithmetic number, because the mean of its divisors is an integer number (103178127).

Almost surely, 2^428586057 is an apocalyptic number.

It is an amenable number.

428586057 is a deficient number, since it is larger than the sum of its proper divisors (190482705).

428586057 is a wasteful number, since it uses less digits than its factorization.

428586057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47620679 (or 47620676 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 428586057 is about 20702.3200873718. The cubic root of 428586057 is about 753.9560191942.

The spelling of 428586057 in words is "four hundred twenty-eight million, five hundred eighty-six thousand, fifty-seven".