28317214 has 8 divisors (see below), whose sum is σ = 43074288. Its totient is φ = 13959120.

The previous prime is 28317203. The next prime is 28317217. The reversal of 28317214 is 41271382.

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 (28317217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99567 + ... + 99850.

It is an arithmetic number, because the mean of its divisors is an integer number (5384286).

Almost surely, 2^28317214 is an apocalyptic number.

28317214 is a deficient number, since it is larger than the sum of its proper divisors (14757074).

28317214 is a wasteful number, since it uses less digits than its factorization.

28317214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199490.

The product of its digits is 2688, while the sum is 28.

The square root of 28317214 is about 5321.3921110927. The cubic root of 28317214 is about 304.8013182432.

Adding to 28317214 its reverse (41271382), we get a palindrome (69588596).

The spelling of 28317214 in words is "twenty-eight million, three hundred seventeen thousand, two hundred fourteen".