28713214 has 4 divisors (see below), whose sum is σ = 43069824. Its totient is φ = 14356606.

The previous prime is 28713203. The next prime is 28713229. The reversal of 28713214 is 41231782.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×28713214³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7178302 + ... + 7178305.

It is an arithmetic number, because the mean of its divisors is an integer number (10767456).

Almost surely, 2^28713214 is an apocalyptic number.

28713214 is a deficient number, since it is larger than the sum of its proper divisors (14356610).

28713214 is a wasteful number, since it uses less digits than its factorization.

28713214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14356609.

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

The square root of 28713214 is about 5358.4712372094. The cubic root of 28713214 is about 306.2155699736.

Adding to 28713214 its reverse (41231782), we get a palindrome (69944996).

The spelling of 28713214 in words is "twenty-eight million, seven hundred thirteen thousand, two hundred fourteen".