28947359 has 8 divisors (see below), whose sum is σ = 33207840. Its totient is φ = 24718176.

The previous prime is 28947341. The next prime is 28947361. The reversal of 28947359 is 95374982.

It is a happy number.

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

It is not a de Polignac number, because 28947359 - 2⁸ = 28947103 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 (28947319) by changing a digit.

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, 5804 + ... + 9569.

It is an arithmetic number, because the mean of its divisors is an integer number (4150980).

Almost surely, 2^28947359 is an apocalyptic number.

28947359 is a deficient number, since it is larger than the sum of its proper divisors (4260481).

28947359 is a wasteful number, since it uses less digits than its factorization.

28947359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649.

The product of its digits is 544320, while the sum is 47.

The square root of 28947359 is about 5380.2749929720. The cubic root of 28947359 is about 307.0456736186.

The spelling of 28947359 in words is "twenty-eight million, nine hundred forty-seven thousand, three hundred fifty-nine".