28534015 has 8 divisors (see below), whose sum is σ = 34580448. Its totient is φ = 22600800.

The previous prime is 28534003. The next prime is 28534061. The reversal of 28534015 is 51043582.

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

It is not a de Polignac number, because 28534015 - 2¹⁷ = 28402943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27747 + ... + 28756.

It is an arithmetic number, because the mean of its divisors is an integer number (4322556).

Almost surely, 2^28534015 is an apocalyptic number.

28534015 is a deficient number, since it is larger than the sum of its proper divisors (6046433).

28534015 is a wasteful number, since it uses less digits than its factorization.

28534015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56609.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 28534015 is about 5341.7239726515. The cubic root of 28534015 is about 305.5772102682.

Adding to 28534015 its reverse (51043582), we get a palindrome (79577597).

The spelling of 28534015 in words is "twenty-eight million, five hundred thirty-four thousand, fifteen".