28830845 has 8 divisors (see below), whose sum is σ = 36101376. Its totient is φ = 22061776.

The previous prime is 28830821. The next prime is 28830853. The reversal of 28830845 is 54803882.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28830845 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28830799 and 28830808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125237 + ... + 125466.

It is an arithmetic number, because the mean of its divisors is an integer number (4512672).

Almost surely, 2^28830845 is an apocalyptic number.

It is an amenable number.

28830845 is a deficient number, since it is larger than the sum of its proper divisors (7270531).

28830845 is a wasteful number, since it uses less digits than its factorization.

28830845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250731.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 28830845 is about 5369.4361901414. The cubic root of 28830845 is about 306.6331636105.

The spelling of 28830845 in words is "twenty-eight million, eight hundred thirty thousand, eight hundred forty-five".