28251714 has 8 divisors (see below), whose sum is σ = 56503440. Its totient is φ = 9417236.

The previous prime is 28251709. The next prime is 28251733. The reversal of 28251714 is 41715282.

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

28251714 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354304 + ... + 2354315.

It is an arithmetic number, because the mean of its divisors is an integer number (7062930).

Almost surely, 2^28251714 is an apocalyptic number.

28251714 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28251714 is a wasteful number, since it uses less digits than its factorization.

28251714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708624.

The product of its digits is 4480, while the sum is 30.

The square root of 28251714 is about 5315.2341434785. The cubic root of 28251714 is about 304.5661267997.

Adding to 28251714 its reverse (41715282), we get a palindrome (69966996).

The spelling of 28251714 in words is "twenty-eight million, two hundred fifty-one thousand, seven hundred fourteen".