28771214 has 8 divisors (see below), whose sum is σ = 44160600. Its totient is φ = 14051016.

The previous prime is 28771201. The next prime is 28771241. The reversal of 28771214 is 41217782.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 167189 + ... + 167360.

It is an arithmetic number, because the mean of its divisors is an integer number (5520075).

Almost surely, 2^28771214 is an apocalyptic number.

28771214 is a deficient number, since it is larger than the sum of its proper divisors (15389386).

28771214 is a wasteful number, since it uses less digits than its factorization.

28771214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334594.

The product of its digits is 6272, while the sum is 32.

The square root of 28771214 is about 5363.8804982960. The cubic root of 28771214 is about 306.4216139906.

Adding to 28771214 its reverse (41217782), we get a palindrome (69988996).

The spelling of 28771214 in words is "twenty-eight million, seven hundred seventy-one thousand, two hundred fourteen".