428672583 has 24 divisors (see below), whose sum is σ = 636002640. Its totient is φ = 278121600.

The previous prime is 428672579. The next prime is 428672603. The reversal of 428672583 is 385276824.

428672583 is a `hidden beast` number, since 4 + 2 + 8 + 67 + 2 + 583 = 666.

It is not a de Polignac number, because 428672583 - 2² = 428672579 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428672513) 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 23 ways as a sum of consecutive naturals, for example, 49635 + ... + 57627.

It is an arithmetic number, because the mean of its divisors is an integer number (26500110).

Almost surely, 2^428672583 is an apocalyptic number.

428672583 is a deficient number, since it is larger than the sum of its proper divisors (207330057).

428672583 is a wasteful number, since it uses less digits than its factorization.

428672583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159 (or 8156 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 428672583 is about 20704.4097476842. The cubic root of 428672583 is about 754.0067537805.

The spelling of 428672583 in words is "four hundred twenty-eight million, six hundred seventy-two thousand, five hundred eighty-three".