28885914 has 24 divisors (see below), whose sum is σ = 64745460. Its totient is φ = 9296448.

The previous prime is 28885897. The next prime is 28885919. The reversal of 28885914 is 41958882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28804689 + 81225 = 5367^2 + 285^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28885914.

It is not an unprimeable number, because it can be changed into a prime (28885919) 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, 27147 + ... + 28190.

Almost surely, 2^28885914 is an apocalyptic number.

28885914 is an abundant number, since it is smaller than the sum of its proper divisors (35859546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28885914 is a wasteful number, since it uses less digits than its factorization.

28885914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55374 (or 55371 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 28885914 is about 5374.5617495755. The cubic root of 28885914 is about 306.8282699504.

The spelling of 28885914 in words is "twenty-eight million, eight hundred eighty-five thousand, nine hundred fourteen".