28584957 has 8 divisors (see below), whose sum is σ = 38305600. Its totient is φ = 18960480.

The previous prime is 28584917. The next prime is 28584961. The reversal of 28584957 is 75948582.

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

It is not a de Polignac number, because 28584957 - 2¹² = 28580861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28584917) 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, 23344 + ... + 24537.

It is an arithmetic number, because the mean of its divisors is an integer number (4788200).

Almost surely, 2^28584957 is an apocalyptic number.

It is an amenable number.

28584957 is a deficient number, since it is larger than the sum of its proper divisors (9720643).

28584957 is a wasteful number, since it uses less digits than its factorization.

28584957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48083.

The product of its digits is 806400, while the sum is 48.

The square root of 28584957 is about 5346.4901571031. The cubic root of 28584957 is about 305.7589519501.

The spelling of 28584957 in words is "twenty-eight million, five hundred eighty-four thousand, nine hundred fifty-seven".