28008914 has 8 divisors (see below), whose sum is σ = 42077820. Its totient is φ = 13982976.

The previous prime is 28008901. The next prime is 28008919. The reversal of 28008914 is 41980082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26697889 + 1311025 = 5167^2 + 1145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28008919) 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 3 ways as a sum of consecutive naturals, for example, 9059 + ... + 11750.

Almost surely, 2^28008914 is an apocalyptic number.

28008914 is a deficient number, since it is larger than the sum of its proper divisors (14068906).

28008914 is a wasteful number, since it uses less digits than its factorization.

28008914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21484.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28008914 is about 5292.3448489304. The cubic root of 28008914 is about 303.6911177616.

Adding to 28008914 its reverse (41980082), we get a palindrome (69988996).

The spelling of 28008914 in words is "twenty-eight million, eight thousand, nine hundred fourteen".