28911014 has 24 divisors (see below), whose sum is σ = 47991720. Its totient is φ = 13052160.

The previous prime is 28910971. The next prime is 28911019. The reversal of 28911014 is 41011982.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28911019) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46397 + ... + 47015.

It is an arithmetic number, because the mean of its divisors is an integer number (1999655).

Almost surely, 2^28911014 is an apocalyptic number.

28911014 is a deficient number, since it is larger than the sum of its proper divisors (19080706).

28911014 is a wasteful number, since it uses less digits than its factorization.

28911014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 28911014 is about 5376.8963166496. The cubic root of 28911014 is about 306.9171155608.

Adding to 28911014 its reverse (41011982), we get a palindrome (69922996).

The spelling of 28911014 in words is "twenty-eight million, nine hundred eleven thousand, fourteen".