28859534 has 8 divisors (see below), whose sum is σ = 47224728. Its totient is φ = 13117960.

The previous prime is 28859533. The next prime is 28859581. The reversal of 28859534 is 43595882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28859533) 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 3 ways as a sum of consecutive naturals, for example, 655877 + ... + 655920.

It is an arithmetic number, because the mean of its divisors is an integer number (5903091).

Almost surely, 2^28859534 is an apocalyptic number.

28859534 is a deficient number, since it is larger than the sum of its proper divisors (18365194).

28859534 is a wasteful number, since it uses less digits than its factorization.

28859534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311810.

The product of its digits is 345600, while the sum is 44.

The square root of 28859534 is about 5372.1070354192. The cubic root of 28859534 is about 306.7348380791.

The spelling of 28859534 in words is "twenty-eight million, eight hundred fifty-nine thousand, five hundred thirty-four".