28023514 has 16 divisors (see below), whose sum is σ = 44929728. Its totient is φ = 13062592.

The previous prime is 28023503. The next prime is 28023517. The reversal of 28023514 is 41532082.

It is not an unprimeable number, because it can be changed into a prime (28023517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (2808108).

Almost surely, 2^28023514 is an apocalyptic number.

28023514 is a deficient number, since it is larger than the sum of its proper divisors (16906214).

28023514 is a wasteful number, since it uses less digits than its factorization.

28023514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 28023514 is about 5293.7240200071. The cubic root of 28023514 is about 303.7438762052.

Adding to 28023514 its reverse (41532082), we get a palindrome (69555596).

The spelling of 28023514 in words is "twenty-eight million, twenty-three thousand, five hundred fourteen".