28547859 has 8 divisors (see below), whose sum is σ = 38228112. Its totient is φ = 18949760.

The previous prime is 28547839. The next prime is 28547903. The reversal of 28547859 is 95874582.

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 28547859 - 2¹⁹ = 28023571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28547819) 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, 19722 + ... + 21119.

It is an arithmetic number, because the mean of its divisors is an integer number (4778514).

Almost surely, 2^28547859 is an apocalyptic number.

28547859 is a deficient number, since it is larger than the sum of its proper divisors (9680253).

28547859 is a wasteful number, since it uses less digits than its factorization.

28547859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41077.

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

The square root of 28547859 is about 5343.0196518448. The cubic root of 28547859 is about 305.6266217854.

The spelling of 28547859 in words is "twenty-eight million, five hundred forty-seven thousand, eight hundred fifty-nine".