28513214 has 8 divisors (see below), whose sum is σ = 43764600. Its totient is φ = 13925016.

The previous prime is 28513213. The next prime is 28513229. The reversal of 28513214 is 41231582.

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 (28513213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165689 + ... + 165860.

It is an arithmetic number, because the mean of its divisors is an integer number (5470575).

Almost surely, 2^28513214 is an apocalyptic number.

28513214 is a deficient number, since it is larger than the sum of its proper divisors (15251386).

28513214 is a wasteful number, since it uses less digits than its factorization.

28513214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331594.

The product of its digits is 1920, while the sum is 26.

The square root of 28513214 is about 5339.7765870868. The cubic root of 28513214 is about 305.5029380152.

Adding to 28513214 its reverse (41231582), we get a palindrome (69744796).

The spelling of 28513214 in words is "twenty-eight million, five hundred thirteen thousand, two hundred fourteen".