28584269 has 8 divisors (see below), whose sum is σ = 32968320. Its totient is φ = 24275376.

The previous prime is 28584253. The next prime is 28584289. The reversal of 28584269 is 96248582.

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 28584269 - 2⁴ = 28584253 is a prime.

It is a super-2 number, since 2×28584269² = 1634120868528722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28584229) 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, 17969 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (4121040).

Almost surely, 2^28584269 is an apocalyptic number.

It is an amenable number.

28584269 is a deficient number, since it is larger than the sum of its proper divisors (4384051).

28584269 is a wasteful number, since it uses less digits than its factorization.

28584269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37579.

The product of its digits is 276480, while the sum is 44.

The square root of 28584269 is about 5346.4258154397. The cubic root of 28584269 is about 305.7564988667.

The spelling of 28584269 in words is "twenty-eight million, five hundred eighty-four thousand, two hundred sixty-nine".