28850845 has 8 divisors (see below), whose sum is σ = 34681176. Its totient is φ = 23040576.

The previous prime is 28850813. The next prime is 28850851. The reversal of 28850845 is 54805882.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3024121 + 25826724 = 1739^2 + 5082^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 28850845 - 2⁵ = 28850813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28850798 and 28850807.

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, 1642 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (4335147).

Almost surely, 2^28850845 is an apocalyptic number.

It is an amenable number.

28850845 is a deficient number, since it is larger than the sum of its proper divisors (5830331).

28850845 is an equidigital number, since it uses as much as digits as its factorization.

28850845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031.

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 28850845 is about 5371.2982601974. The cubic root of 28850845 is about 306.7040511818.

The spelling of 28850845 in words is "twenty-eight million, eight hundred fifty thousand, eight hundred forty-five".