28830107 has 4 divisors (see below), whose sum is σ = 28949976. Its totient is φ = 28710240.

The previous prime is 28830103. The next prime is 28830119. The reversal of 28830107 is 70103882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28830107 - 2² = 28830103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28830107.

It is not an unprimeable number, because it can be changed into a prime (28830101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59573 + ... + 60054.

It is an arithmetic number, because the mean of its divisors is an integer number (7237494).

Almost surely, 2^28830107 is an apocalyptic number.

28830107 is a deficient number, since it is larger than the sum of its proper divisors (119869).

28830107 is a wasteful number, since it uses less digits than its factorization.

28830107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119868.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 28830107 is about 5369.3674674025. The cubic root of 28830107 is about 306.6305472320.

Adding to 28830107 its reverse (70103882), we get a palindrome (98933989).

The spelling of 28830107 in words is "twenty-eight million, eight hundred thirty thousand, one hundred seven".